I'm definitely torn on this. As people have said, the football field is a great place to spread illnesses, I tend to get some sort of cold or other minor respiratory thing at some point each season though that has been reduced the last two years due to being more careful about handwashing at halftime and after games and how I handle my whistle with my hands. I expect that I will get COVID at some point, I think most of us will, but personally I'd much rather delay that until effective therapeutics have been found. Everyday of our lives we make decisions based on risks vs rewards for everything we do and I am not one who, as some people like to say right now, "lives in fear" (as an example I have gone scuba diving with large sharks and visited White Island in New Zealand a few months before the tragic eruption there while fully knowing the risks). If this was just about the chance of me getting it, I'd definitely choose to officiate though you better believe that the coaches are going to be kept back off the sideline and they can talk to me from a distance. But it isn't just about me, if I get infected then I run the risk of passing it on to other people when I do things like go get gas or go to the grocery store; this is especially true if I end up being asymptomatic and thus not knowing I have it. People with health problems can take all the precautions in the world but have to go out from time to time or encounter other people and me deciding to officiate increases the risk to them when they had no say in the matter. That possibility of passing it on to other people is what bothers me and gives me pause. This is even more complicated for me as my wife is a doctor at a Children's Hospital and if I were to pass it on to her, that means her patients and the hospital suffers too because of my choice. There is also other concerns from a medical standpoint such as more people having it increasing the chance of mutation into something more dangerous or just another strain which would make a vaccine less effective (the flu vaccine is never 100% effective because there always multiple strains of the flu at any one time and you can't build a vaccine that covers every possibility at once. The way flu works is actually really fascinating to read about.).
There is a lot of time between now and August and hopefully things develop in a way to get us back onto the field either by a dramatic decrease in number of infections, improved testing and tracing, improved therapeutics, creative ideas as to how to get things to work, etc...