I think there is this mistaken idea that if something is generally available, especially without licensing or other restrictions, then just anybody can operate/use it safely. These folks aren’t even wearing proper attire or PPE for operating these vehicles. But hey, they grew up drinking out of the water hose or whatever other nonsense they think makes them impervious to the laws of physics. Truly, we’re all sorry your parents didn’t love you and neglected you, now put a fucking helmet on.