As a non-contact sport, Badminton is pretty vicious. I’ve had my fair share of injuries over the years but if players that young are already strapped up to that extent I hate to think how long their bodies can put up with the punishment.
I have a colleague at work who used to be a decent long-distance runner. Now he walks around on crutches hoping to delay the inevitable knee replacement having worn his knees out. So sad to see.