It costs more to exclude children from a programme.

Food is bought in bulk, buying two types of food costs more (i organise conferences, I have experienced this, every option you add, costs more in admin).

Those kids have to be tracked from week to week, and even day to day. If they pay today do they get the cheese sandwich or the hot lunch?

if the authorities wanted the money, they could go to court. Instead, they have chosen to humiliate the children.