And in response to which sport is harder, NO SPORT IS HARDER THAN ANY OTHER SPORT! It's easier to grind any rail on rollerblades than a skateboard BUT that just means rollerbladers will do more complex bigger rails.
It's like comparing calculus to football. Both are equally as hard, you can commi...
@Caraceliazzz
Only if your parents are drug addict hookers. Rollerblading has no money.