This is why financial and investment course are really important regardless how much the money you have, any economy class from poor, middle or upper need to understand this.
Rich people who doesn't have any financial and investment knowledge, sooner or later their money will gone since it's got beaten by luxury lifestyle and inflation. But poor people who have financial and investment knowledge, might able change their economy class to middle or upper depends on how much money they can make.
When talking about stock investing, you have no choice but to trust platforms. On the other hand when talking about bitcoin/crypto investing, you can simply not trust centralized platforms and do things peer-to-peer — which is heavily recommended all the time here on Bitcointalk.
It's no problem to trust the stock platform since stock has an insurance, although it can't cover the whole your investment.
While in Bitcoin, there's no such insurance platform and we must use hardware wallet.