if some people investing their money into something that they didn't know, all they'll get is some loss. try to learn anything that new to you, so you can know how to avoid the risk before you investing your money. try to invest your money very carefully and try to get some lesson from some experts. their experience is really important for all beginners in crypto world.
While you are giving good and sensible advice most people are not very rational when it comes to their money and they are very emotional when it comes to it, this is what happened at the end of the bubble of 2017 when many people that did not knew anything about cryptocurrencies decided that investing in a market they knew nothing anything about was a great idea and they suffered the consequences of that mistake.
But that is not exclusive of this market we see that all the time and I do not really think that this is ever going to change because most people are not willing to go through the trouble of learning how to invest or to trade effectively.