Fake "deep" azz logic. A lot of people don't train martial arts due to lack of motivation or shytty work ethic or both. People aren't scared to start at something if they have a motivation and passion for it.

maybe if the motivation to train in MA is to be able to run a successful fade, those ppl don't need to be practicing
being grown is being able to avoid all that.
ish but a true humbling experience is Yoga or anything that works the core intensely...getting winded or not being able to hit full range of motion whenever is a real
experience