I do not think that a crypto currency will make people smarter. Using crypto currency is not very difficult, so people with any mental abilities can do it.
But the areas around crypto require us to have a good knowledge of various topics, such as economics, investment, and content writing, and that obliges us to learn, the consequence of learning is that you will have more knowledge, and so the link here will be the crypto that makes people smarter. Especially with the rapid development and expansion in many different fields, crypto is really an endless source of knowledge for everyone, I can not deny that people in crypto are gradually getting smarter and apply more knowledge to real life