One set of protests were against mask-wearing and another involved wearing masks for the most part. I think the consensus is that outdoor activity is ok if you

One set of protests were against mask-wearing and another involved wearing masks for the most part. I think the consensus is that outdoor activity is ok if you're distancing or wearing masks (preferably both) but as soon as you come indoors where there is less ventilation, the aerosolization of saliva particles can create a vaporous suspension that lasts a long time - if even 5-10% of the population isn't wearing masks then it could be dangerous.