People can fall for it, a lot of people actually. It's hard to believe, but there are a lot of people who believe that they can make quick money from crypto and that it is indeed a get rich quick scheme. Now imagine coming into this industry to find this offer from this fake trading website, they'll grab it with two hands and fall victim to it. There are quite a lot of stupid scams out there, but if there were no victims, the scammers wouldn't bother anymore, but they still do; so they indeed do get victims.
You are right. The cryptocurrency industry is getting extremely saturated when it comes to the number of people who are in it and how many are joining with each passing day, and as you mentioned, most of these people think that cryptocurrencies are a shortcut to richness. They think they can earn life-changing amounts of money from this industry, and this thought process becomes their enemy in cases where scammers offer victims very high returns, and the victims, being new to the whole thing, think that they are getting their lives changed from this.
Another big problem is that such people don't listen to advice, no matter how many times they read online, from this forum, social media, or in any other place, they will still make the same mistakes and lose their money, some wouldn't even understand if you explain it to them face-to-face.
So, you are right, no matter how advanced the world might become, there will always be some people who would become victims of scams.