Did they have toilets and were they nice? If not I can understand it.
If a trucker is taking a pee or a dump in a truck you don't want their hands coming straight onto your cafe tables...
On an extra note, things like this add a psychological factor its like the cafes trying to scream "we're clean!".
+1 to the psychological factor of things here. People don't notice but that's a large majority of what people do-- to make themselves look like they're a certain way, even when they know that they're not.
But honestly I don't think it's that much of a problem. People are scared because of what the media is going to blow this whole thing out of proportion. People don't understand that while the problem is pretty big, the coronavirus still isn't as deadly as something like the Flu. But the Flu isn't news, so the media can't run with it. This is why they're running with the coronavirus.
Media loves panic, and they're going to run with this until they cant.