knee savers were originally designed for older catchers who had been catching for 20+ years. i see so many young catchers wearing them to protect their knees. when i see a young kid wearing them i always ask which type of surgery they had on their knees. my point is that if they are worried about their knees at that age, they are at the wrong position. catching at a young age will help to develop and strengthen their legs. wearing the knee savers makes the kids too comfortable back their and that causes laziness. unless they rise off of them with guys on base or with 2 strikes, it limits their blocking and overall pop times. kids wear them due to the fact that they see big leaguers wearing them.. nothing more... they look cool and everyone wants them. kids dont need them, and if they want to protect their knees, then dont allow them to set up sitting on the insides of their feet with their knees collapsed in.