When it comes to the safety of the money of course bank is one of the safest.But if you want your money to double or tripple or even more you can put/invest it in crypto but no assurance.
Banks are safe compared to cryptocurrency but money in the banks has less interest while cryptocurrencies have a good potential to gain more interest. Although banks has stable price and cryptocurrency business is untable due to price volatility. Some people are still into banks because they are afraid of crypto while others are risk takers who choose crypto.