Self-defense. Know two other guys who have possibly had their lives (or at any rate, probably hospital visits) saved in street fights and muggings. There are also countless juniors who have been able to fend off bullies. It's also exercise, which has extensive and proven benefits. It also has huge benefits in terms of bone strength and density. So yes, I would say real-world application.
Is it recreational in some way? Sure. But again, it has real benefits, while I don't see any in riding a toy stick (aside from enjoyment gained).
Is it recreational in some way? Sure. But again, it has real benefits, while I don't see any in riding a toy stick (aside from enjoyment gained).