A password manager can both take care of remembering unique passwords and allow privacy options

Hard to convince users that they need to be using a password manager if you run a SaaS. Also when things like LastPASS getting hacked are on the front page... imagine advising people to use that one! (I'm guilty of recommending LastPASS many years ago, before their first breach).

Good luck getting people to use one! Even when they do, the UX is a nightmare.