Been doing it for 10 years plus. Changed banks recently. Just got a bit of a talking down to in branch. It's fraudulent. But I handle all the accounts. And I can't look at/pay our credit card bill (with same bank) logged in as myself because he's the main card holder. So I always log in as him. Daily. I check the current account and credit card bill daily whilst things are fresh in my mind. Apparently that's surprising. I should get a paper statement once a month and check it that way.
We've been locked out of ibanking a couple of times lately too (over zealous security, with us being new, I think). And of course I have to call them when DH is here, hand the phone over so he can listen to the security questions, he tells them to hang on a mo, asks me for the answers, relays the answers to the person at the other end, then gives them permission to talk to me. Crazy.
Surely there are loads of us who do this? Or perhaps we are just really old fashioned. But I have always looked after the finances. I have much more time than DH for this sort of thing.
(On a serious note I really should make sure that DH knows all the security codes. They are written down - he's just not all that interested (fine by me)). But there are so many! This new bank has an ID, a photo, a nickname, a password and a passcode, plus had to set up THREE security questions as well (mother's maiden name etc.). Times that by 3 for all the different accounts we have (and that's just banking) and I can see why DH doesn't know them!!