Once again, trading crypto is not risky but easy. Everything about trading cryptocurrency is learning from the basic to gain the necessary experience over times, and have patience.
Now, business is a pool of risks even crypto, but it depends on individuals experiences to win trades and overcome some of these risk involved over times.
Trading is easy but it is completely not a business for newbies but the well trained traders who knows how, and when to take or exit a position.
Some people just jumped into crypto trading without any knowledge because they thought they can earn money or become rush quickly. Some people even start trading future without any experience. In my little research, many people that complain of trading losses are traders that took high leverage on margin or future trades, unfortunately, when the market crash against them they suffer heavy losses.