It's just that a lot of beginners don't thoroughly research or bother to ask questions before they attempt something for their first time. And when there is money involved, this is never a good idea. Another factor is that beginners from my experience usually fall into traps that play on their greed, like promised returns on their funds or steep discounts on goods.
Just forgot the thread, I have noticed few days back that a guy got scam by signature. Someone gave few code to him for sign a message from his wallet. Code was request for payment. After sign message his fund was transferred to hacker account. Is it not a stupidity? Why should we sign with unknown code? Obviously it was happened due to lack of knowledge.
Like this. It's honestly quite an elaborate scam, but warning signs should be apparent when a seemingly meaningless message is asked to be signed. But with a little research and asking around if you had these suspicions, people could easily avoid it.