This is quite presumptuous. Even minor injuries can add up to long term damage. We don't need to keep our kids inside or wrapped in crazy layers to protect them. We also don't need them to get hurt a lot for them to learn what's good or bad.
It sounds like your concept of “minor” may be calibrated too high. Kids need to test boundaries to learn limits. They need to learn limits to live safely while understanding their actual capabilities. This involves getting hurt sometimes. Is it fun? No. Do you learn a lesson almost every time? Yes. This is the compounding that actually matters.
This is quite presumptuous. Even minor injuries can add up to long term damage. We don't need to keep our kids inside or wrapped in crazy layers to protect them. We also don't need them to get hurt a lot for them to learn what's good or bad.