Well, I've been at parkour for about a week now. I don't wanna try rolling on concrete, but I have tried on a harder floor.
After reading through this, its kinda like... Rolling is such a fundamental principle, yet takes awhile to master... So at what point could I really call myself a traceur and say "Yeah, I do parkour" without seeming like a complete noob (which at this stage of the game, I don't have a ton of experience yet).