We found wearing masks made communication sufficiently more difficult as to be a safety hazard during student flights. So, we developed a Covid questionnaire and were taking temperatures etc before flight. With sanitising the aircraft between flights and keeping the air vents open to promote a through draught during flight, we considered that we had sufficiently mitigated the risk. We have several doctors in our Club, and they concurred with our general approach. During a year of (sometimes on-off) operation, we haven't had a single case of anyone reporting that they have tested positive.
Otherwise, on the ground, we have maintained social distancing with mask wearing indoors. We keep doors to our briefing facility open, which creates a good through draught (sometimes a gale, bearing in mind where we are!).
We're in the UK and are a Club run by volunteers. We don't make a profit and don't have shareholders to account to, just our fellow Club members. Our motivation is to go flying and share our passion with others, probably just as strong as the money one, actually!
TOO