It's time for cryptocurrencies to have strict and clear rules, it's been more than 10 years but cryptocurrencies don't have clear regulations yet, this certainly makes us worry about the future, as happened with LUNA which was previously ranked 10 with a price of more than $100 but only take a week to be under 1 cent.
Luna was a horrible mistake - Two of my friends made the same mistake and they have lost trust on crypto.
They are not ready to invest in crypto ever again - they say they had no idea that they will end up in such disaster. But that is how gambling works.
I think it's normal and when we see it from your friend's point of view maybe we will also do the same thing,
no one thought something like that would happen to Luna because previously Luna's reputation could be said to be good and became the top coin,
but maybe your friend needs time to believe in crypto again