Why do you have to protect your hands when playing the piano?

Hands are the key to playing the piano well. Whether the keys are properly touched and the fingers are flexible when playing the piano has a lot to do with having a good pianist. It is very important to protect the players.

I know that it is simple for piano teachers to protect their hands, that is, they are not allowed to do heavy and dangerous things, but they still have to do daily things. When it is cold, they should put gloves on their hands early and keep warm with hand cream. Pianists play most of the time every day, always practicing their hands, and always put a towel at hand to wipe their hands. Pianists' hands, like singers' voices, should be protected.