Have a great time I wanted to also say that yes you will see stories of fines and FAA investigations. These all are started by Either someone that reported the persons video OR the pilot caused an injury. (all injury accidents must be reported to...
My first thought is the cost and will your son really get into it.
"Starter drones" are not inexpensive. At least not the DJI variety. You can spend hundreds of dollars+ and it ends up in the closet. The only requirement I would look for is GPS...
I see YouTube video talking about flat earth, don't take advice from idiots on YouTube rely on places like this where people actually know what they are talking about (well most) ;)