Anyone can engage themselves in crypto regardless or your status. Investing is also an opportunity to gain in time, but as I have said we should not have high hopes. Anyway, being poor is not a hindrance to exclude yourself in any kind of investment opportunity. As long as you know the risk and will only invest the money that you can afford to lose then you're free to do what you think is beneficial to you in the future.
This is not so, investments are not easy, for this you need to have a good amount of knowledge, and even for such people, investing is not always easy. And accordingly, for "any person", as you said, it will be many times more difficult, especially for the older generation, who do not get along well with new technologies.
On the account of poverty, this is generally a separate conversation, but in short I will tell you, that for a poor person whose number one task is to survive, he does not even think about investing when he has enough money only to eat and not always enough even for new clothes. Where can he get money to invest? Perhaps a few will do something even in this situation, but for the majority it will be impossible.
