Ask HN: Are we limiting humanity by restricting access to education?

Lot of students want to learn(and experiment with) various subjects of their liking, but society (e.g the education institutions) decide who can learn specific subjects, what they can learn and when. No one can predict what an individual's future holds and what that individual will be capable of in the future. So should students be provided access to any subject they want to learn at any time and not be restricted by society in doing so?