The physics of an unethical daycare model that uses illness to maximize profits

It makes no sense. Are the caregiver paid by hour? I expect most of them paid by month. Hiring a good and cheap caregiver is a nightmare.

I expect two caregivers per room for 2-3 y.o. and 1 for 4-5 y.o. And perhaps one going from room to room just in case. So I don't expect that they can send one home.

As a parent without nearby family support, this feels uncomfortably real. What the model exposes is a system where illness isn’t a failure but an incentive, quietly shifting the cost of optimization onto families.

Sounds more like the Mathematics rather than Physics, to be pedantic.

But kids do get sick a lot without any encouragement.