Being able to jump around, stand on one hand, do back flips and break dance are all a part of doing cool calisthenics.  It’s a gift to be able to be so flexible you can move your body is so many different ways.  Not everyone is able to do it so if you can, cudos to you.  There are many people who make their living off of doing calisthenics.  Break dancers in the streets make hundreds of dollars a day incorporating the moves into their routines.  It’s so amazing how something like rolling that we were taught how to do as a child, turned into such a lucrative act.