Yes! Me too. Not adding anything here except a confirmation on the above approach. You kind of need your email password as a "break glass" scenario. But mostly, you just need your password manager.
So no, I don't think "in this day and age" necessarily. And I believe that the vast majority of "normal" users don't do full drive encryption either. But yes, we should.
But I'm not sure. While maybe good password management is starting to soak into common computer usage, I don't think disk encryption is all that common just yet across the average user. It should be. But the average user is just moving to their phone anyway, with face id and encryption by default, instead of maintain their own personal device.
Corporate devices seem to be a bit better in this regard, though.