I work at a private school that my D attended and my S currently attends (he’s graduating next weekend). The school is in an affluent area and has lots of wealthy families. At the same time you have a good chunk of kids on financial aid. The school also has a scholarship program where they choose low income high achieving students to attend our school for high school. I also know middle class families where both parents work and they live in smaller house and drive older cars so they can pay the tuition for their kids to attend. Not everyone who attends a private school is wealthy.