In Hatfield, Massachusetts, long-unquestioned social contract (guaranteed tax support for children's free public education) is up for grabs. A battle over condoms underlies more serious generational differences over "frills" (mainstreaming, peer mediation, and affective education) and who should pay. Parents may have to contribute to per-pupil costs apart from taxes; nonschool institutions should shoulder their share of society's burdens. (MLH)