Aren't banks sort of the poster children for legacy practices though? Only works with this or that browser, here are some weird password rules, yes I have an SVGA monitor, no I can't search older than 90 days, etc. I'm used to turning off my modern expectations and just getting into the 20 years-old flow for the time I'm logged into the average bank. No, I don't want to switch banks (where my mortgage and dozens of ACH linkages are set up) to have better ad blocker compatibility.