The problem with such programs is that they are also discriminatory in some ways. Set aside the differences in culture, just the amount of time and logistics that some lower-income people spend just to live their lives. Add to that the requirement to go to some kind of classes (or suffer some kind of unspecified consequences if I read "make them" as having some kind of teeth) and you can get to an unsolvable situation for some.

I volunteer occasionally at my young kids' public school and I'm saddened to see the differences in time that parents [/guardians] spend with their kids. It's readily apparent in the kids' behavior, even in pre-K and first grade.