Well sure, but the average consumer needs and/or wants some protections, safeguards and insurances. If my bank gets hacked or even if I get skimmed it's considered their fault and I'll get my money back.
If the police retrieves your money from the thief?
If it's stolen from a bank, it's their obligation to recuperate you.
FWIW, most countries have a type of insurance if a legally operating bank goes under, at least some of your savings are protected (eg. in Serbia that's up to 50kEUR).