Anyone who dated one knows its cool but also knows its not very chill thing to do. They look very fragile but its serious shit, lot of injuries and training. Its like Athletes, you need to do it full time and sacrifice alot.
I can only imagine the amount of hours and hard work put in to have a body that is that fit. I am 40, I am in reasonably decent shape but damn, finding time to get this fit and stay that way is sheer mental capacity that I don't have and most definitely admire.