FWIW, two things to remember regarding AFROTC and future career options.
1. The scholarship is a 2+2. It is not a straight 4 year like AROTC. He will need to be selected in the spring of his sophomore year for SFT. If not selected, chances are they will disenroll him from AFROTC
~ Selection boards do not take into account if the cadet is on scholarship. It is what is known as. Masked. IOWs nobody sees that information.
~ Avg selection rate is 55-60%. There were a couple of years in the 90s, but don't presume that was common, it was actually very uncommon and it came back to bite them. Those year groups are now vulnerable to being not commissioning AD.
2. If they want to go rated, in the summer of their junior year they will be sent to Wright Pat. for a 3 day trip. 2 of those days will be all day exams. It is a two tier exam. One will account for their DoDMERB the other will be the Flight Class 1 physical (FAA) . Those exams include everything from hearing to vision to EKGs, plus everything in between, in essence every aspect of his body will be poked and prodded.. The final exam of the two days will be with an AF Flight surgeon.
~ Just putting it out there that if he wants to fly don't assume that the DoDMERB Qualified is the bar set for flying.
I don't know what the FC1 standard is for eyes, so you may want to investigate this aspect while you await the results because if he gets both scholarships and wants to fly, but finds out that his vision would need a waiver for flying he may change his mind on which scholarship to accept.
~ IE wants to fly anything in either, but if can't fly would rather be in a tank in the Army than at a desk in the AF.
College is 4 years, and AFROTC historically does not allow a Guard/Reserve option like AROTC does That means he will have at least 4 years ADAF. Plus, for AFROTC grads most will not report for duty for 6-9 months, which really !sans he will be closer to five years when he can officially leave.
Good luck.