Not everyone does that though. We may think that is the norm just because it is the norm in the circles we run in.
I got to see the other side of that fence when I was in grad school. A friend would get paid by check, walk several miles to the bank it was written on, exchange the check for cash, then hide the cash in her apartment. Unbanked people do exist.
There are also people who, while technically not 'unbanked', are unable to use any of the modern facilities of a bank. I know my mum and a few of her friends fit into that category. They have a bank account but have no realistic access to a cashless life.
They don't own computers or smartphones and couldn't use them even if they did, find themselves unable to deal with the menu systems of phone banking, struggle at times to pay in a shop via a card as they have issues remembering pin numbers or using the pin terminals to pay, and even struggle with the use of ATMs.
Luckily my mum can usually use an ATM but prefers it if I go with her to get money. She withdraws a weeks worth of cash at a time. A friend of hers does the same but via the cashier at the bank counter as she cannot understand ATMs. Both of them like to use cheques but almost no one accepts those anymore.
Life grows increasingly hard for people like this as Banks and even ATMs close and stores introduce self service checkouts, which may as well be nuclear reactors for all the chance they have of operating them. I know my mum has put down a basket of shopping and walked out of a store because there was no manned checkout at the time.