huh u guys never heard of such contracts apart from this?

if u quit before xx years then u need to compensate xxk amount because of the training provided.
I heard if they want to enforce it they need to prove that the training provided is indeed worth that much. which is a little hard to prove , and also usually training isnt really worth that much anyway, which course costs 1 year employee salary??

also, They cannot use it to penalize you, but can recoup costs incurred to train you etc . please correct me any lawyers?