It's been years since I've last set foot inside a bank. I'll need to do it soon since the ATM card that I got 14 years ago is started to get sufficiently threadbare that it typically takes four tries for a machine to read it.

Relative to the inconveniences of modern airline travel, a bank asking you to remove your hat isn't particularly uncomfortable. Now, if they were serious about the security issues, they'd require Sikh men to remove their turbans, Muslim women to remove head scarves, and so forth. That would be when things start getting difficult.