Some children are already behind their peers when they set foot in kindergarten, setting them up for an uphill climb that could last years. some of our children are not ready for them. It’s not just a wealthy versus poor gap, either. Even the most resourceful parents confront a bewildering array of options — and lack of options — for early childcare and preschool.

San Diego Unified wants to make the new state-mandated program a half-day affair. That has some parents wondering whether the program would simply swap some educational disparities for new ones.