Here in the states you don't need one, but I definatley wouldn't recommend one for anyone under 18. My nephew who is 10 got one as a present and the second day he had it, he busted himself up pretty good, my other 13 year old nephew (who was set to leave to the Cayman Islands the next day) crashed and broke his collar bone in two places, therefor unable to go on his trip, and my mom crashed and busted up her leg and knee! LOL