Our main bank is Chase. When we travel in the Western US there are almost no Chase banks outside of major cities. We also have a Wells Fargo account. The WF account makes it easy to get cash on the road without having a limit or paying a fee.
Most of the time that is no big deal and there is little reason to visit an actual bank while traveling. Over the years there have been several exceptions.
While full time traveling my wife and I had all our credit cards and IDs stolen. We got new cards and cash at a local WF branch and they helped us with the logistics needed to get new driver's licences, etc.
Another time I got a substantial amount of cash to do some bargaining for native American jewelry.
Another time I had credit card issues. One card expired. One card had been in use for several years and became brittle and cracked in two. The third card failed because the issuer had a fraud alert issue and decided the card needed to be inactivated and replaced. Turns out I did not need cash but instead I went to a WF branch and picked up a debit card.
Another time I visited relatives and stayed in a local RV park for a couple of weeks. It was a small, private park that would not take cash or credit cards. I had to pay with a cashiers check. The WF branch across the street made that easy.