Today Morning, One Thing came in my mind. BTC is really an amazing concept not only for the rich people while the for poor also, because no one can control the price of btc. For example, at 2017 -2018 if you are invested in btc then right now you can collect a huge amount to use like in education , in health, in your family or your future plan.
The crypto market is very volatile. If you want to invest in crypto currencies and "not" plan to hold for long term, then only invest whatever you can afford to lose. In short term the market can be a roller-coaster ride. You will never know when the price will go up or down (like look at the market right now. Two days ago it went down a lot. But right now, it is all recovering). So for a "poor" person, if he can't afford to lose the money, then he shouldn't invest at all. But if they are willing to take a risk, then yeah. Go ahead. Let them do it. Secondly, the price can be manipulated a little. The whales can do that. Even influential person can have some sort of power over the market. But effects are always short term. And as time goes by and more people joins the market, it will be harder for the whales to cause any disturbance.