I assume you're totally right about indoor events with people packed together (nightclubs / gigs / theatre etc) being more risky than outdoor sports like football, especially where alcohol is involved… but perhaps part of the thinking for doing it the way that’s been announced is to give arts / culture / nightclubs a bit of a break. They’ve been almost entirely closed since the start of the pandemic, whereas sport has been able to continue, albeit partially and with restrictions in place. On the basis that you can’t / shouldn’t (yet) let everything go with no restrictions, it’s arguably fair to let arts / culture go next - this sector has probably been the worst affected. If it means I can’t get to away games for a wee while yet, I’m ok if it means gigs can re-start.