I don't want to get too pedantic, and this may be beginning to get off-topic, and for that I apologize. But your example still isn't one of a privilege. What your example shows is that it is easier to concentrate on one thing instead of two or three things. Is time really free if you're choosing to just concentrate on one thing? Joke all we want that being a student is a job, but in most ways it is a job. Maybe not as strict as one, but if you're doing it properly, it should be as consuming as one.