For example, pulling in to buy petrol because they're displayed price is good. You don't know how much you have available in the transaction account, but you have cash.
I have a bank app. It's simple and works.
Before that, they had a website. It's easy to check a balance in the morning and use that to guide you.
Before the internet was widespread, banks had a number you could call to get your balance. Heck, I think my current bank still has this, despite me being in a different country now.
Once you are in a situation where these aren't as helpful, you are probably in a bad life situation (speaking both from experience and observation of folks I know).
Kinda funny, I use my credit card for daily transactions because I know it's never declined. On the other hand, I might not have enough cash on me at all times.
I don't do banking on my phone, and non-US currency where you can see what you have from the colour of the visible portion of the notes without opening the wallet.
Also unlike a phone I won't get fined for looking at my wallet while stopped at the lights.
I have a bank app. It's simple and works. Before that, they had a website. It's easy to check a balance in the morning and use that to guide you.
Before the internet was widespread, banks had a number you could call to get your balance. Heck, I think my current bank still has this, despite me being in a different country now.
Once you are in a situation where these aren't as helpful, you are probably in a bad life situation (speaking both from experience and observation of folks I know).