LOL... screw those birth control pills and condoms, they are not 100% effective all the time, so why bother.
I just dont get the all or nothing attitude, well it is not perfect or 100% so why bother. Seat belts and child seats are not 100% either, but I bet you strap the kiddos down.
Unless you are living in complete isolation, with no contact with the outside world, or walking around in a bio-hazard suit all the time... there will be risk of exposure. mask or no mask. But your risk is lowered when you practice mask wearing etc.
I personally like the idea of minimizing risk whenever possible. Even though it is not perfect... I wear a seat belt... I also wear a mask, socially distance, restrict my socializing, and wash wash wash those hands.