The 2 families I had were both on "social assistance" I know for a fact they were scamming the system AND none of them worked. So I took care of their kids all day so they could go hang out with friends,go to internet cafes,go shopping etc.
I have a SERIOUS issue with this. One of them often tried to bring me her child when she was sick even.
So I made a personal choice only to accept families who work from now on.

Also, because they were on social assistance, they only had to pay 10$ a week and somehow they still could not manage that.