at home I have a number of laptops. Any of them may become a shared laptop at any point in time with zero notice :) ( I already get enough grief for having the black original Das keyboard on my main desktop.)

At work there's less sharing but back when we were in the office, it happened. I also have two work provided laptops (one from my employer and one from client) which are heavily locked down.

Finally there's all the other keyboard manifestations in my life - on my work iphone and my personal android phone and the tablets and all the tv apps that pop up a keyboard to sign in etc.

Qwerty may be suboptimal but it's freaking everywhere.