All people I know wear masks only in the case you are not allowed to go into somewhere. And me too, yep. As some here have said you need a mask when you go to shops, any public transport (the most funny and fritening thing is you difenetly get such many "kind" words from others and even more - transport stops until you put your mask on, and if you don't - you can be expelled from transport by force. It's... kinda spectacular), malls and e.t.c.
Important? Maybe. I do not think masks are the best protection from the virus because of sizes of the virus and the pore size of the fabric in the mask - there is a huge difference! Important use more effective protection.
People usually don't change their masks every 2-3 hours as instruction says and some of them uses the same one all the time as I notise (for the first time masks bacame too expensive and if you calculate the price at which a pack of them will cost you, you will understand how much money you can waste). It's unsanitary, people have more risks to ill (if it wasn't COVID it would be something else, I'm sure). Also it is annoing when you see so many dirty masks on the ground and pavements - these kind of litter EVERYWHERE.
Whole my family got infected and has already been ill - that's one of the reason why usual masks (+ even using anti-virus cream) are not effective in my view. We need something else D: