You are right, and I think the next step after any type of formal education (or not even “next” but simultaneous) is to move forward, beyond every system of indoctrination, to explore and learn from every existing system but not become a slave to any one of them.
If a person can learn by themselves - it’s even better, but it seems like in many social circles and families the culture of self-learning and discovery is almost non-existent... and I think that’s a factor... and for many attending some kind of lectures can be like the first helpful push in a new direction