I can't really see this catching on with the general public. Many of the momentum-driven movements in parkour require a complete commitment to the move that I don't think average people are brave enough to have. I'm not talking about big drops or anything, just that if you ever want to kong a table, you really have to run at it. You can't walk up to it, bail out, or give it only 50% and ever expect to get the technique down. Seems to me that most will do all the little drills real traceurs have designed to make learning it easier, but when to time comes to run full-out at something and try to vault it, they'll all chicken out and take up tae bo at the YMCA.
