for me there are three reasons why they do not want to invest in crypto
1. they have not known crypto
2. they are not interested
3. they are afraid to invest after losses
I agree with you, most people are afraid to invest in Crypto and now many ICO projects are scam so investors are losing their money because they are wrong in choosing the projects they invest.
That's true, some people are afraid to invest and afraid to get scam by greedy people. That is one of many reasons why they lost interest in crypto. Nowadays, we all know that there are many scammers online so people are being scared to gamble and lose their money.