Any reason we shouldn't just make mask use permanently mandatory in public (similar to seatbelts)? Even in times without covid, I'm sure it would reduce a lot o

Any reason we shouldn't just make mask use permanently mandatory in public (similar to seatbelts)? Even in times without covid, I'm sure it would reduce a lot of infectious disease transmission (flu, cold, etc). We can further optimize and reduce death counts by making all gatherings permanently remote. If people can't gather, they can't spread disease. We can also further optimize by advocating people have less kids. The smaller the population, the fewer people will die. You can't get sick if you were never born. Had we been doing all these things for the past century, we would have saved many millions of lives by now (well, they all died eventually, but I mean we could have extended lives by millions, maybe even billions of man-years).