@syag-lchochma You wear a mask when inside, shul, stores, or simchas. That’s what counts. Outside is not as important, I can understand if you have asthma or something and difficult time wearing a mask 24/7.
I have never heard a doctor say anything but “please wear a mask as much as possible”. My local pediatrician, Dr. Zelenko, my friends who are doctors, Dr. Shanick, Dr. Fauci, Dr. Birx, Dr. Jerome Adams, my co-workers who are epidemiologists, all say that if everyone wears a mask the disease will be halted. What country are you from? Maybe it’s a cultural thing that where you live doctors are against masks.
The mask being porous is a misconception. COVID-19 viruses can get through a mask, that is true. But it’s the medium in which they travel that the mask blocks. That medium is spittle and other bodily fluids. Try blowing out a candle while wearing a cloth mask. You can’t! Just like your breath is severely hampered, so to your spittle doesn’t get far, certainly not far enough to carry a COVID-19 virus into someone else’s mout.
Masks work. Everyone who is professionally educated about viral transmissions or works in healthcare are near-unanimous on that front.