Even finely tuned HS athletes on good HS teams who have a chance to win "stuff" are really careful with what they do in their spare time.
And really good HS coaches of good HS teams who have a chance to win "stuff" keep track of what their athletes do in their spare time.
Mrs Buffett and I have an example in our family. One of our sons now 29 was a really good snowboarder eventually represented a board and clothing co once he graduated HS , and competed in local, regional, and national competitions.
In HS he played football and was on a wrestling team that won a PA State Championship and had top finishes other years. The coaches in both sports Discouraged ( with a capital D) participation in sports like snowboarding, skiing, water skiing, surfing, extreme mountain biking, car racing ( popular in our area), etc.
I would think college coaches have similar concerns for risky off season or even in season activities. Serious Athletes should police themselves!
The wrestling room, football and wrestling weight rooms were open all year long which were encouraged along with football, wrestling camps and competitions. If an athlete gets injured its atleast in an attempt to be better in their sport!
It sounds boring but if anyone knows PA State Wrestling champs or teams ask the athletes how much time it takes to be that good these days. If you're a serious athlete you really dont have alot of time to do other things.