[zzzmarcus]

If you slam on the brakes, yes, you'll fall. However in my experience in practice it is not hard to get used to braking on a longboard. I've done it and seen lots of other people do it without crashing.

You probably don't stop as fast as you would on a car or a bike, but you learn to control the speed you stop at pretty quickly.

I don't think longboarding will ever be as safe as riding a bike, but braking isn't the biggest reason for that.