> I'd not accept to be treated like children.

What is your expectation from such a class? What are you hoping to get out of it?

If you merely want a tutor that will help you out navigate a topic you are interested in, with no strings attached, then sure, yes. No need to take exams.

But if the goal is to get a formally recognized degree in some topic, then you will need to accept that there will be oversight over how you understand that topic. Because the institutions granting those degrees need to sign them off. And if they care about their reputation, they would be interested in signing off only on those students, who actually understand the topic.

So there will need to be exams. In the AI era, it is close to impossible to guarantee that a remote exam will accurately evaluate your understanding of a topic. So the exams would need to be carried out in person.

There is nothing children-specific in using such approach. It is merely one of the few still somewhat objective ways to actually test people's understanding of some topic.