It may seem like a traumatic and daunting task, but even the UFC’s best have to pack their children up and send them off to their first day of school.

Here’s messages from three UFC champions and their experience with this week’s first day of school.

The first born ready to attack his first day of Kindergarten. The world is your playground son, get after it!

First day of school ever for CJ and last year of pre-k for cassidy. Crazy feeling! http://t.co/JYaq2TEnpA

— Chris Weidman (@ChrisWeidmanUFC) September 3, 2014

First day of kindergarten. Wow that was hard to drop them off. Time goes by to fast.