There are many things most likely to consider whenever you're investing money in crypto..
These are:
1. Volatility of the Market.
2. They don't have the knowledge about crypto.
3. Negative news that they see or hear in social media/TV Media.
4. They were scammed and afraid to invest again.
5. Threats of hackers in the internet.
This is quite true. But the main reason here is that they were already scammed and thus they are afraid to invest again. It happens to me 3 months ago when I invest to a certain project . I am blinded with the fact that it seems risky but with a great return. Now I don't invest money in crypto anymore .