Parkour is exactly parkour, 1=1, that simple. Views of parkour, now that's just defining a subject which limits it to people views. Say I use parkour and practice because others don't, and if they ever did start, I could ignore them and know full-well I am better, if ever challenged to prove I'm better I'd just bombard people with questions of and about parkour... and their philosophy, and where they learned it, and their favorite movement, and how do they feel about Penny Flips, and what shoes do they prefer, and what place do they normally train, and how high can they precision just straight up, and the highest drop they've taken, and how to perform a landing, and how many youtube videos they had to watch before they were inspired.
I'd become a very huge dick, because here, when it becomes summer, I love nothing more than to f#ck with dumbass kids who "know everything."