Ben Torah:
SJS amswered the second point. I will just add that it depends on your location (I would not send a child to public school in South Side, even if I was NOT Jewish), as well as the home. I would bet that most Klei Kodesh children would come out with strong Yiddishkeit, even if they went to public school (or the new “charter schools” that are popping up).
As far as the first, one of the parents should possibly be home so that they can homeschool, thereby not requiring tzedaka, instead of making a pittance and then requiring Tzedaka for babysitting & Yeshiva.