Congrats. My daughter went through Army bootcamp. Make sure to send way to much to him in bootcamp. Believe it or not, cough drops are quite valuable, and traded frequently. Since they are not candy, they are allowed. Now, if for any reason he runs into trouble and gets hurt, they will offer him the chance to go home, then come back when he is better. DONT DO THAT... They will follow it up with a medical discharge. Whatever happens, he will need to stay there and get it done.
Congrats again! Looking forward to hearing what area he goes into after graduation.