He shouldn't rely on crypto short term investment for his daily need, this is because he doesn't control the market, and when he's desperate to make money, he just won't stop making mistakes, I have bought some good altcoins for long term, but as the coins are pumping, I take some profit along the way. I don't sell all my position to avoid FOMO and getting nuke. Cypto is for the long term patient folks.
Why not when cryptos are highly volatile? And what about the traders? Traders don't wait long enough but they always take advantage of the swing of the price.
Many of us here doesn't have the ability to control the market but only the whales are the ones who can do that because you will be needing a very large amount of funds to be able to do manipulations but if you have that kind of fund, do you think you will do the same thing? I guess no. I wouldn't stress myself a lot to earn more and manipulating the market is also a sinful act. Mistakes are normal and if a person is desperate, he won't just give up but he will try his best to learn and improve himself.