It should depend on the type of study. It makes sense to collectively invest in productive education of the younglings, it makes sense to have lones for things

It should depend on the type of study. It makes sense to collectively invest in productive education of the younglings, it makes sense to have lones for things less certain and it makes sense to not fund things with poor roi. Could also have a feedback loop so that educators get rewarded/punished for the success of their students (relative to the cost). If someone offers expensive education without career opportunities it seems fair to tax the shit out of it. It makes it more exclusive.