And yet more thoughts... We were pretty involved in the HS/college sports scene for a number of years, but that was a number of years ago!
One of son's HS state championship football teammates played D1 football, and is now in the later years of a successful NFL career. I think this guy is the only D1 athlete in my son's circle of athletic friends, which included three sports for four years at the HS varsity level. Of all of those athletes, only one played D1, then pro. The funnel is pretty steep (or narrow) going from the elite HS players to D1 to pro.
This NFL player in question had multiple major reconstructive shoulder surgeries in (D1) college and again early in his NFL career. His shoulder got destroyed a few times. It's put back together now, and he is an established player.