It didn't take much convincing. My grandkids (3) are going to parochial school, for under 5 grand a year (I pay for all 3), and get to pray every day and go to church as well as get a quality education, with class sizes of fewer than 20 students.
Yes, I pay for the public schools as well, but for me, the investment in the kids is worth it.
The average public school tab figures out to be between $8K and $10K per year per student, depending on how it is calculated.
Now, I know the teachers don't get all of that. Bus transportation, buildings, administrators and support crew all take their cut, but they still get plenty compared to their parochial school counterparts.
BTW, I am personally acquainted with a parochial school teacher who took a 40% cut in pay to leave the public school sector. I have no idea if the 40% represents an average salary difference, but she told me the pay cut was worth it to get: