Anyone can join crypto even teenager to elderly. It would be better if they also have passion on crypto. Although they are not educated but if they have passion then they can study crypto with pleasure.
I think cryptocurrency did not prohibit uneducated people to join to as long as they are willing to learn what cryptocurrency meant to be. There are many uneducated people which are very brilliant but not educated due to can't afford pays to school. But it does't mean that they are not capable to join cryptocurrency but rather they might be more capable than to educated one based on oneself confidence.