Why wouldn't the average user? The entire idea is that you'll just have to remember two passwords: your computer account, and your password manager. At least for most users, the idea that some password shouldn't be stored just opens the door to bad practices and password reuse.

For someone working on a password manager, I think the default assumption has to be that a screwup on your part will--literally--impact pretty much every aspect of a user's life. You can't assume that some passwords won't be stored.

My email accounts' passwords are far more important than that of my bank account, and there's no way I could put up with typing them in every 15 minutes.

On top of that, chances are that a bank login saved in a password database, which has 2FA and other sensible precautions, is probably kept safer for any one individual than the bank's systems themselves, what with the huge legacy cruft they suffer from. No-one would be able to walk into my computer, or call it, with some faked documents and social engineer themselves into my password database.

Uh, because otherwise my bank account password would be the equivalent of 1234abcd. That's what my password basically way prior to using a password manager. Now my bank password is the maximum length allowed and is what is basically a random mix of upper lower case letters, numbers, special characters.

After reading this I'm seriously considering dropping my password manager and going back to something I can remember and type in in a reasonable amount of time like 1234abcd.