i am not a big sports person, so i don't have the fairest perspective, but considering containment as the first and best line of defense at this time, and considering we do not have readily available testing for everyone at this time, and we do not have a vaccine, cancelling large gatherings is a reasonable approach. it would be impossible to bar just the high risk categories from an event, and would cause further social unrest anyway, so at least until we have immediate testing in place and a vaccine, we would be wise to hold off.