Teaching bitcoin to others is a good idea but to do that you need to have enough knowledge, experience or even deep expertise to be able to teach others and take their money. You can't take advantage of people's ignorance and give them knowledge about bitcoin when you yourself don't have too much knowledge about bitcoin. Not to mention, knowledge about bitcoin is not too difficult to find on the internet and everything is free. So if you want to open a center or a class to teach about bitcoin, there is nothing wrong but you need to provide them with knowledge commensurate with the amount of money they pay you. Education may sound simple but it is no simpler than business related to bitcoin.
I think there is no problem if someone who is experienced and has a lot of knowledge of Bitcoin can make people aware of Bitcoin for a small fee and it will be great. There is no doubt that everything is there on the internet, but it takes a lot of time to search and find the right information, on the contrary if someone can provide good knowledge for a small fee then I think it would not be bad.
Other than that, I agree with you. A person who has no knowledge himself can't teach others, whatever knowledge it is, they need to learn it themselves first because only a knowledgeable person can teach others. Without acquiring knowledge, if a person makes such a mistake, he can make people lose thousands if not millions of dollars. Therefore, it is important that you yourself are fully trained and have learned everything before teaching others.
As I said, if you have enough knowledge and experience, you can open a center or a few classes to teach people in need. The only issue I want to talk about here is morality, we should not take advantage of other people's ignorance for our own benefit. That not only directly affects our reputation, but also the reputation of the cryptocurrency industry.
Honestly, I don't like this idea because by introducing or teaching bitcoin to others, we are contributing to making bitcoin more popular and once bitcoin is popular then we are also the beneficiary's profit. Second, we can learn online for free or our knowledge has been taught by others so there is no reason we have to charge others.