Bank investors have more certainty because there capital is completely safe but they give 8-10% annual profits to the investors of per year. But it is comparatively less in terms of profits.
On the other hand you will get constant profits from crypto as if you are experienced in trading then daily profits is possible. Otherwise you can get profits by investing. However crypto investment puts your capital at greater risk (main point).
Despite the risks in cryptocurrency investing, I think it is currently less risky than keeping money in the bank. At present, in almost all countries of the world, many risky people who keep money in banks are now withdrawing money from banks and using it for other purposes. Especially those who are well experienced about cryptocurrencies are taking money from banks and investing in cryptocurrencies. Just don't have to have experience in trading if you hold good top cryptocurrency then you can get good success which is hundred times more profit than bank.