I am no expert, but something to consider - in Austin a few restaurant owners said they will not reopen with 25% occupancy requirement, as it will be unprofitable. So the fact that very few businesses are open might be due to that as well (which is a direct effect of the government restriction).
Exactly this, restaurants rarely make big bucks unless they have huge takeout already or get multiple uses out of each table. If you have the former you are doing well without your dining room, if you don't 25% is pointless.
I'm not sure they would be anywhere near full occupancy even without government restriction. I can imagine a significant portion of the population self-limiting to essential activities only, regardless of the level of government restrictions.
