-If you have money in bank or invested in stock or somewhere else regulated by government and you dies, bank/stock exchange will contact the nominee when the account goes inactive. but if a person who hold crypto dies, nobody will know about this so the money is lost forever. if the person decides to share the crypto details with someone then its not really a "secured" currency.
-If someone stole money from your bank/stock/credit card account, it can be tracked where the money went and can be recovered by filing complaint with your bank or authorities. but if somone steal your crypto there is no way to get the crypto back.
So how is this a currency of future, did anyone asked these question before?
Btw crypto wasn't meant for that. Main idea behind it was to get rid of any 3rd party services. It has it's pros and cons like everything. Bitcoin offers control on your funds, what's more secure than this? Bank controls your account, they can freeze it at any time but no one can freeze your bitcoin account so you have to consider this too. Also it offers better anonimity than traditional banking.
I wouldn't blame bitcoin, it's a great thing and invention.