Wearing a mask is a small price to pay no matter how much or how little it minimizes the risk of contracting or minimizing the intensity of the virus. Let's error on the safe side either way. It's kind of like wearing a seat belt while driving. Not wanting that small inconvenience to interfere with your individual rights is just selfish beyond comprehension. And there was a time when people did complain about wearing seat belts too giving exactly the same reasoning. Somehow they got over it.
I hope everyone would be willing to do their part no matter how they feel about available data. That can all be sorted out at a later time. Until then, let's show some respect for those working in the field and those working with the public and wear a mask. What's the harm?