Why should they spend time training? Isn't increasing the money on the table enough motivation for people to train themselves on whatever skillset is required a

Why should they spend time training? Isn't increasing the money on the table enough motivation for people to train themselves on whatever skillset is required and apply for the position? Part, if not whole, of the truth is that the learn-unlearn-learn cycle in itself is a skill. People who posses that skill acquire new skillsets and stay relevant; people who don't have to wait to be trained.