I respect you opinion, you carry on wearing your mask for as long as it takes this virus to completely disappear that's fine.
The percentage that I would infect someone is so small that, 1. I would need to have the virus, 2. They would have to be vulnerable, 3. There own mask would most probably protect them anyway. 4. I would need to be close enough to infect them.
I'm not saying I never wear a mask, but if I pop in a petrol station or local shop, I probably won't bother.