What skills are overwhelmingly easier to learn in institutionalized context?

(e.g math wouldn't count, because even if motivation is circumvented as an issue in institutions, you should be theoretically to study everything at home. Neither would necessarily the handling of some kind of lab equipment, if there was some clear documentation available for you, and (assuming that you took the efforts to remember it) if the transfer to practice was straightforward (so pushing buttons and changing settings would be straightforward, while the precise motions of carving a specific kind of motive into wood would be less so))