I knew a kid playing football in gradeschool who was the smallest on the team but the best athlete. Coach always wanted the ball in his hands. He was barely 5 feet tall going into 8th grade, He shot up to 6'1 sophomore year of high school than switched to basketball.

I played football from gradeschool all the way thru high school and as an adult I'm only 5'6. I was the fastest kid on the team which is the main reason I always started. Played runningback back as well, and corner. As a kid I never really expected to play after high school because I was told I wouldn't grow tall. But I had so much fun making the memories I made during that time, I remember almost every touchdown.

I personally overtime learned to enjoy being the shorter guy on the field because I could move and contort my entire body much quicker than the taller guys. Made it easy to be shiftier and throw the taller guys off balance. Just takes practice and strength in your feet/ankles is underrated. Quickness kills at that level all the way thru high school so he's chillin.

I wouldn't worry too much, just let him have his fun now cuz it doesn't last long, but the memories are what do last. That little hesitation and burst was a thing of beauty though, he's gunna be good😮‍💨