That assumes everyone thoroughly washes their hands, which is unlikely. Dyson hand dryers, specifically, always have a nasty puddle of water at the bottom of their drying "crevice" in busy bathrooms.
The sheer number of people I've seen running their hands through water for a second before moving onto the drier was alarmingly high in 2019 (pre-covid).
I don't know how much that's changed, but I wouldn't expect the change to be particularly meaningful, sadly.
> Dyson hand dryers, specifically, always have a nasty puddle of water at the bottom of their drying "crevice" in busy bathrooms.
That's just a bonus, the main issue with them as other comments have noted is that they shove the water off of your hands using their "air blades".
This aerosolises a significant fraction of that water (the rest goes and collects in the puddle you speak of), spreading it all over the room.
More classic driers primarily work by evaporation, and furthermore direct the air stream downwards (to the floor) rather than sideways (across the room).
Doesn't matter how well you wash your hands, you still have to touch the door handle to get out (they usually open inwards) and some grotty germbags will have poopified that handle 50 times over before you get to touch it.
The bathrooms with Dyson driers near me open inwards but have foot openers,¹
as well as the other bathrooms with paper towels inside and waste baskets just outside (so you can use the towel to open the door before tossing it).
I was hoping that COVID would trigger a contactless revolution in bathrooms where I don't need to touch a pooped up door handle to get out... But sadly seems not a thing
I don't know how much that's changed, but I wouldn't expect the change to be particularly meaningful, sadly.