You do not have to 'get it' or 'sign up' for motorcross. This is something you do on your own, you just train on your own, and of course you have to have a bike and gear, but you just go to the race and register. That's about it. lol
Motorcross is competed in, all around the world, at various motorcross tracks
Motorcross is popular EVERYWHERE but mostly i would say America and the UK
Well, you don't 'play' motorcross! You ride it, and you do this at any outdoor or indoor tracks.
In the 1800s
no
British
well it depends on who but football players at an average do make more $ than motorcross bikers.
out of boredom, something different to do.
falling down and death
about 70mph
ride dirtbikes?! lmfaoo.
50cc