Health, don’t kid yourself, tuition in EY is not FREE!!!
For BY schools, you can send your girls for free, but most boys’ chadorim that I know of cost $. Not like prices in America, I’m sure, but salaries in EY are no where near what they are in America either. I pay around $150 a month for a boy in last year of grade school and they ask for $300 for boys in high school (no dorm), which includes 3 meals (not the most nutritious and definitely not the most appetizing).
My girls are in private school and I pay about $100 per girl per month. I’m not sure what the chassidishe schools charge or if that is subsidized by the chassidus.