Just an excerpt that I found on APK/SFPK
"The goal of Parkour is not to make money or create a business. There is no financial goal behind it. Parkour should be taught to people who want to learn. If they don’t have money it does not matter because you don’t need any to do it, just a pair of good shoes and that’s all. Now people are like “Beware! The Academy is gonna open!” or “There’s gonna be a Parkour centre blablabla”. But me, I learnt Parkour outside! The real Parkour training is to be done outside. You can do whatever with your centres, put some mats down, but people will always end up going outside."