Train for a specific task? No. But train to be able to acquire new skills, yes. For example, I have explained the basics of Go to my 5yr-old, but he will need y

Train for a specific task? No. But train to be able to acquire new skills, yes. For example, I have explained the basics of Go to my 5yr-old, but he will need years to be able to develop sufficient abstract thinking, patience, etc. to actually play. Schooling is not primarily intended for academic training, at least until post-secondary levels are reached. Instead, it's primarily about socializing, instilling rule-following, reinforcing social roles, and so on.