> In many Asian countries it's absolutely normal to wear a mask when sick, to prevent further spread possibly to the weaker among society.

"When sick" is an important distinction from the current regime.

> A hygiene regime isn't some binary thing where one failure of perfect compliance ruins the whole effort.

It's exactly like that. You get either infected or you don't. It's binary, however you maybe mean that there is a probability attached that is bound by the circumstances.

> Particularly with examples like "touching face more often", why would you even do that? You put on the mask and you leave it on, the constant touching, particularly with dirty hands, is really down to a lot of people being lazy/careless or trying to wear the mask as little as possible.

How is it better to wear masks for these "lazy/careless" people (which are apparently a lot)?