Good luck not feeling old when you see Mia Talerico on her last first day of high school.
The Good Luck Charlie alum headed off to her first day of senior year and reflected on how time has quickly flown by.
In pictures shared to Instagram Aug. 19, Talerico sported a pink, shoulder-free top and jean shorts as she posed with a sign that marked the momentous occasion.
“Last First Day!” the 17-year-old wrote in the caption. “Now I'm starting to feel old.”
And it’s not just the Disney Channel star who is shocked by how far she has come. Indeed, Talerico’s annual tradition of celebrating her first day of school has stunned fans who watched her on TV as a toddler.
"That’s so crazyyy we literally all [watched] her grow up," one fan commented on last year’s post. Another added, "This is really the same charlie i grew up watching. im 22 now."
Of course, Talerico—who starred in Good Luck Charlie as the titular role of Charlie Duncan from 2010 to 2014 alongside Bridgit Mendler and Bradley Steven Perry—is aware of how odd it is that she has aged in front of everyone’s eyes.
"It’s so weird," she said during a Destination D23 event last August. "So many people know who I am, but I don’t know them. I think that’s a really surreal feeling."
"People still come up to me and ask me about it," the teen added. "I think sometimes it’s a little funny because obviously I was so little, so I look so different, but it’s awesome to see that people still love it.”
And Talerico is grateful for fans’ memories, because she confessed she doesn’t have too many of her own.
"Obviously, I was so young that I barely remember a lot of it," she admitted. "But I’ve heard so many stories and watching it back is truly like a family scrapbook."
For more stars who have celebrated the beginning of the new school year, keep reading…
Hoda Kotb
The former Today anchor and her ex Joel Schiffman celebrated daughters Haley Joy and Hope Catherine kicking off their studies.
"It’s here! First day of school," she wrote on Instagram Sept. 8. "4th and 2nd grade! Whaaaatttt?"
Kate Middleton & Prince William
Prince George was escorted by his parents to his first day at Eton College on Sept. 8.
Khloe Kardashian
The Kardashians star kept up with tradition, snapping a photo of son Tatum and daughter True on their first day of school.
“I canNOT believe Tatum started school today! And my True is in THIRD GRADE!” she wrote on Instagram Sept. 2. “Both of my babies are officially in school and I truly don’t know how we got here.”
LeBron James
The NBA icon's daughter Zhuri's first day of sixth grade on Sept. 1 was complete with a Herschel Supply backpack full of books and a ride to school.
Al Roker
The Today anchor's son Nick returned to college to pursue a bachelor's degree after earning an associate degree in communication in 2025.
"Another drop off for my young man," he wrote on Instagram Aug. 29. "Gonna miss him but as Al Roker Sr. always said, #cantmissyouifyoudontleave. So very proud of him."
Craig Melvin & Lindsay Czarniak
The morning show host and his sports journalist wife sent their kids Sybil and Delano back to school on Aug. 26.
"So proud of these two," Melvin wrote on Instagram, "and can’t wait to see all they accomplish this year."
Jamie Lynn Spears
College 101. The Zoey 101 alum helped her daughter Maddie set up her dorm room at University of Southern Mississippi in mid-August. A few days later, she and her husband Jamie Watson sent their daughter Ivey off to third grade.
As the actress put it in an Aug. 19 Instgram post, "Definitely crying."
Kendra Wilkinson
On Aug. 19, the Girls Next Door alum shared a dropoff selfie with her daughter Alijah, who she shares with ex-husband Hank Baskett.
"First day of 7th grade and i couldn’t be more proud of Alijah," she captioned the photo. "Made her a chicken quesadilla for lunch lol. Time to fly my love. Good luck my amazing daughter. I love you."
Mia Talerico
Good luck to the Good Luck Charlie alum, who started her senior year of high school on Aug. 19.
Richard Blais
The Top Chef: All-Stars winner was served a plate of emotions while sending off his daughter Riley to her freshman year at Indiana University Bloomington, writing on Instagram Aug. 18, "Gonna miss you kiddo."
Trista Sutter & Ryan Sutter
The longtime Bachelor couple dropped their son Maxwell off at the University of Colorado Boulder, with Trista writing on Instagram Aug. 17, "He’s gonna go so far and we’re definitely not angry. Emotional, yes, but so insanely excited and proud - which is a very strange place to be…caught between 2 drastic emotions."
And if that wasn't already a bittersweet moment, the parents of two also saw their daughter Blakesley off to her senior year of high school.
Sheryl Crow
The singer made sure to soak up the sun with her son Wyatt before sending him off to his freshman year of college.
"Where does the time go?" whe wrote in an Aug. 17 Instagram post. "For any parent who just went through this, I know how you are feeling! So proud of the young man he has become, and sure am missing him around here!"
Teyana Taylor
On Aug. 13, the Oscar nominee and her ex Iman Shumpert celebrated their daughters Junie Shumpert and Rue Shumpert's "first day" while showing there's one resemblance after another between the actress and her kids.
Giada De Laurentiis
The Food Network star reunited with her ex Todd Thompson on Aug. 8 at a college send-off party for their daughter Jade.
Tristan Thompson
The NBA star escorted his son Prince—who he shares with ex Jordan Craig—to his first day of fourth grade, joking in an Aug. 12 Instagram, "Man I’m getting old."
Melissa Joan Hart
The Sabrina the Teenage Witch alum enchanted to see her and husband Mark Wilkerson's sons Braydon and Tucker head back to school on Aug. 12.
"Last first day of school for our Brady," she wrote on Instagram. "Senior year for him and 7th grade for Tucker. May God bless and protect all the children as they head back to school!"
Kelly Stafford
Matthew Stafford's wife snapped this photo of the NFL quarterback sending their twins Chandler and Sawyer off to their first day of fourth grade. As she captioned the photo on Instagram Aug. 12, "New school, same girls."
Lindsay Arnold
The former Dancing With the Stars pro waltzed her and husband Sam Cusick's daughters Sage and June to class on Aug. 12, writing on her Instagram Story, “I can’t believe they are both starting school now.”
Jana Kramer
Summer is winding down. The Whine Down podcaster sent her kids Jolie and Jace—who she shares with ex Mike Caussin—as well as her and husband Allan Russell's son Roman off to their first day of school on Aug. 10.
"First day of Pre-K3, 5th grade & 2nd grade," she captioned a photo of their blended family. "So proud of these three and excited for all this school year will bring."
Brittany Aldean
Jason Aldean's wife shared photos of their kids Navy and Memphis heading back to school on Aug. 11, calling it an "emotional Tuesday."
DeAnna Pappas
She's going to school for all the right reasons. The Bachelorette alum saw her daughter Addison start seventh grade on Aug. 11.
"You are incredible Tiny," she wrote on Instagram. "Praying for a great year in middle school!"
Taylor Selfridge
The Ex on the Beach alum helped her and Cory Wharton's oldest daughter Mila get ready for elementary school. As she wrote on Instagram Aug. 12, "My little first grader."