Or sacrifice even more and do it yourself.
I don’t know enough of Catholic theology or social teaching that I could provide 8-12 years of daily lessons on the Catholic faith like you get in school. That’s why I have paid the tuition to put every kid through Catholic school at least through the 8th grade and have tried to convince the kids to all go Catholic for high school (as it turned out, we ended up splitting the kids between several schools)
That’s why there is a Catholic school system in the first place, to give kids a Catholic education. I myself, I get my communion every week and I do my hour at church but I have forgotten a lot of what I was taught as a kid and in no way would I be qualified to teach my children all the ins and outs of the faith