One of the reasons your costs are so low is that you are not including a percentage of your mortgage/rent, heating/AC, transportation, food, insurance, computers, the cost of your teaching, (including your retirement plan, social security, and medicare), required classes for your staff, and the opportunity cost of your lost wages
Plus I would imagine you do not have children who need special care such as speech, OT, PT, Communication devices, and/or specialized teaching due to autism, learning disability, and/or intellectual disability.
I would imagine your costs are still lower than those of the public school, but when you look at what the honest costs are, it will much greater than $500
I said without the overhead in my original statement. I would not work outside the home so I have no lost wages. The only increase in costs with having them home is electric. We would have all those other expenses anyway (computer, food, mortgage etc). My youngest two need speech therapy which I provide at home. I also save on things like new wardrobes for school, school lunches, gas too and from (mine would not ride the bus), school supplies that have to be purchased for the school etc. I have calculated the costs well.
But the point is this, it costs alot to educate one child in a government school. Is it money being well spent?
Even if education just paid for those things you listed, it wouldn’t be so expense. The lions share of any school budget is administrative costs.
Like the Superintendent of schools and his wife the school nurse who both retired on a combined retirement package of $100,000 per year. Way more than mr.mm made per year that we were trying to support a family on.
And that was almost 20 years ago....
It was obscene then and it’s obscene now.