Yes, I am also one of those people who still use banks, because there is no other choice for me so I still have to continue using money, especially since it is true that crypto is used as a commodity asset, and legal payments are still using fiat money.
I often shop at online shops and I always use a bank for the payment method, even though there is a pay-on-site feature, for me personally I am not comfortable because I am worried that the item I ordered will arrive while I am not at home, so I pay through the available payment methods, one of which is a bank.
I think it will take a very long time if I want to move away from using banks.
More simply use a bank to support your daily life, both to buy goods and other needs, and for the rest, use Crypto for investment assets. If both can be used simultaneously there is no harm because in our time we must be able to keep up with all developments.
For purchasing problems in online stores, you can visit stores that already have many followers and read descriptions of people's comments. I have a clothing shop and so far I have had an online shop ordering service, now you don't need to come to the shop to shop because there are quite a lot of online shop services available that people can use. There are two payment models that you can use, paying directly with the bank or following the COD system.