Whereas investors could only lose totally on Cryptocurrency when they fail to invest on Bitcoin or other good Cryptocurrencies and instead invest on shit coins, or they save their assets on a custodial wallet instead of a non-custodial one, else Cryptocurrency especially Bitcoin is one of the best and safest investment any investor could think of.
Except for the bitcoin you're investing in, your investment is not safer than the banks. It's probably even worse. Your savings in the bank might only be affected by inflation (if we put all the security and privacy issues aside) but with altcoins, your coin might dip one day and never go back up, leaving you with nothing.
So if you're looking for an alternative to the bank's kind of savings and investment and you want to invest in Crypo. stick to bitcoin for the long term and you'll be safer if you follow all the security and privacy measures.
I wonder why anyone would even think of buying shares with a local bank or saving huge part of their money with them, when they could save for a long-term with Bitcoin and make huge returns later, Bitcoin blockchain makes it very secured and the only ways an investor is at risk is saving their asset with a wallet that could easily be penetrated by hackers or fail to safeguard their private keys.
Buying the shares of a bank is different from saving and investing with the bank. I will totally recommend people buying the shares of a bank, defending how successful the bank is. It doesn't have to be one of the biggest banks in the world, as long as that bank makes a lot of profit at the end of its financial year, it might be a good idea to buy its shares if you want to diversify.