Litcola2 is correct. Government money comes with strings. It may still be a private school, but they will have to do X, Y or Z to qualify to receive the public funds. I'm guessing that your child finished school before covid started, because the private schools happily went along with the ridiculous mandates because they knew the government could close their schools for good if they didn't.

Good for you for understanding that private school was the better choice for your child, and for sacrificing to make it happen.