Looks good Chris. If you're looking for criticism, it looked like he was just pulling on some of those takedowns. He'd be better to corrupt his opponent's posture and get an advantageous position instead. Still. The kid looks good! Congratulations to you both. Blue Belt is an important step in a young karateman's journey. Thanks for sharing.
In my mind underbelts are always kids. I had a blue belt who was in his sixties and I thought of him as a kid all the time. It's just a habit I suppose.