A lot of people get paid by hours worked so not showing up means a lower monthly income. And hourly contracts don’t have sick leave in many cases. At least in several countries around the world.

No work no money. No money no food. No food, die. RIP

I work from home, with about one day in the office a week, if it's something minor, or I think it's just seasonal allergies, I'll still go in.

Not an American, I take it?