You shouldn't home school then if you need sources as "proof".

What do you need sources for?

The $18,000+ per year per public school student?

The cost of homeschooling resources? That's variable and it depends a lot on how you decide to implement things.

Personally, if I was going to home school (no kids so don't have to worry about this), I'd purchase a set of McGuffey Readers as a top priority.

You shouldn't home school then if you need sources as "proof".

What do you need sources for?

The $18,000+ per year per public school student?

The cost of homeschooling resources? That's variable and it depends a lot on how you decide to implement things.

Personally, if I was going to home school (no kids so don't have to worry about this), I'd purchase a set of McGuffey Readers as a top priority.

You shouldn't home school then because you're obviously an idiot.