Because crypto can be said to be too early for everyone in the world even though in fact in some countries crypto is already very popular, but in some countries it may still be foreign and even completely unknown.
So you have to introduce it little by little to your parents so that they understand.
It is not difficult to educate people around us about crypto if we have been in the crypto market for a long time. Moreover, we can show what we have obtained from crypto. Then explain how the workflow of crypto and the ecosystem in it, the most difficult thing is to educate people who already feel smart because the possibility that what we say will be rejected by them. For example, there are some people where I live who think crypto is a form of gambling but it's not like that.