Crypto is proven, for people who invest and trade can make a lot of profit, if they understand the trading and investment system.
So it's only natural that people prefer crypto over fiat, it's included in the category of increasing money, some think, for what to keep fiat in the bank, it's better to invest in crypto, about security and trust, people believe in crypto, instead of making fiat investments in an obscure fashion, their own crypto is in control, not someone else.