> It's not enough for a real tuition or to support them to study instead of work.

... should it be? Or should you have to save some of your basic income for a period to go to school?

If every year you got enough to live off and to be an enrolled student, I think the temptation to just be a perpetual student might be really attractive to some individuals, and not really valuable to society. Even from the yardstick of "how much do you learn", I think it's important to follow formal education with meaningful periods of trying to usefully apply what you've learned to real needs.