cantoresq-continued hatzlacha in your pursuit
SJS- yes, I was referring to those not yet observant Jews, but I don’t think there is any leeway for any Yid who wants Torah to be a part of their progeny and future descendents. What to do about the overwhelming cost is a difficult dillema, but I know my feelings are give as much as you can, and do with less (and I don’t mean children as I will now explain.)
As far as children, no one knows how much light each neshama is supposed to bring into this world. The amount of tza’ar gidul banim is not something we have control over, and each person has to consult their Rov to make their own cheshbonos. But the hashkofa of understanding that each child is a brocha, and has a tafkid far beyond our human understanding, should help us and give us strength to realize that we have to throw that burden (of tuition) onto Hashem responsibly.