Wrong filling stadiums with non vaccinated people is calling for trouble, and you can't know who is vulnerable or not.
This is the least of priorities for governments & if they do they will get the biggest backlash they can imagine from healthcare pros ... nurses & docs are tired after the huge mistake to reopen some crowded facilites in the summer.
Now France is going into a 3rd Lockdown & Spain doubled the daily cases compared to octobre "20.
Football clubs & orgs need adaptation to this era as many business did.
It's off topic, but you can. The number shows clearly that some groups are vastly more exposed, others are basically safe (exceptions aside). Teenagers, young adults, and adults are safe generally. Older adults (those approaching 60s), and especially old people, as well as those with preexisting conditions, are exposed the most. And the differences are not small.
You cannot carry on more years with these severe measures lol until every dude is vaccinated. And even then, the vaccine doesn't even last years probably, so the people should need another dose again probably, before some even got it the first time. Like this, you never get out of lockdown. It's a loop that can go on for a decade.
The best plan would be to vaccinate the exposed groups and gradually reopen things. And see if cases subside (they should, by a huge proportion). If they subside, relax more measures, until you gradually get to the pre-corona situation.