That's a good advice also make them research for stop loss in big profits lot of them getting bad in crypto if they loss some money. It's better to make a good plan for making a choice to avoid such as big loss.
Trading is a risky business but no more so than any other investment. If a trader imposes strict money management on himself, it is impossible for him to lose all of his capital. What makes trading dangerous is the way traders perceive the financial markets. We get rich or we lose everything! That's not true! If you scrupulously respect money management rules, trading is no riskier than investing in buildings. I really love trading, and I wish everyone success)) 
Naturally, any business cannot be riskless. However, when it comes to cryptocurrencies, the risk grade is very high. First of all, the person can lose a lot through the lack of the knowledge of crypto and choosing the hype projects. I recommend newbies to deal with BTC and alts that live at least 2-4 years.