That's a good starting point - contact sports.* I don't see any
   reason for them to go away (although I have some ethical qualms
   about 5 year old Pee Wee Football... but, well, other people can
   fight that fight and they will).* But as physicals are already a
   part of sports programs, adding brain scans to the mix wouldn't
   be too difficult in theory, and there's money in sports, so
   funding wouldn't be difficult, should the pro-leagues put a
   little of their earnings into the children's sports programs.
   After all, it's an investment into the future of their own
   programs to have a healthy stock to work with.* [sounds awful
   when I put it that way but then again, as a whole, I'm not a fan
   of sports-as-entertainment.* But it exists and will continue to
   as it always did, so ..]