CC is a rookie. The Olympics are now thoroughly professionalized. If she stays healthy, CC will be a candidate for three, maybe four, Olympic cycles. I’m not at all surprised that the U.S. team is comprised of seasoned pros.
The same thing happened in men’s basketball. Most of us are old enough to remember when we sent college players. That was a looooong time ago.
I think it's better the way we did back in the old days. Maybe there should be a rule. You can't turn 22 during the Olympics and you can only compete in the Olympics once. If you get hurt, too bad.
There are other games for the "pros". World Baseball Classic. World Cup. Etc.