The kid looks like he is not a gym rat, steroid or HGH user. Good for him.
He’s skinny like a distance runner, has terrible form (poor start, stands up too soon, wobbles down the track, runs a bit hunched over), but is just naturally FAST.
The biggest thing here is that he’s running faster than both Usain Bolt and Tyson Gay were a the same age and most sprinters don’t peak till 27 to 30 years old. If he gets the right trainer/coach, stays clean and doesn’t burn out...watch out! 9.80 should be a breeze with some minor corrections. 9.70 and lower with a few more years of growing and weight training.