My own opinion is that greed and desperation to get rich quickly has made many people lose their money in crypto. Most times, someone will warn you that it’s a scam but because you want to try your luck you will still go ahead to invest.
Sometimes it's not even the aspect of knowledge because someone that's investing might actually know a lot but still end up losing because they are too greedy or eager to make money, this is common among lots of Nigerians, I don't know if I should blame this on the economy but for a lot of reasons they seem to be falling for scams and it's expected of them to have known better.
if the profit is to good to be truth the best thing is to do investigation before putting your money. Don’t allow desperation to make you lose the money that you work hard for.
Making proper research before putting your money into any investment is very important, having the patience to actually learn is something that a lot of Nigerians don't have, they only focus on earning without giving much time to learning.