It's basically government day care, isn't it? Progressives relentlessly pursue their cradle-to-grave programs to turn all Americans into wards of the State (or serfs - we're already serfs, given the % of our labor we have generously voted to offer to our morally- and intellectually-superior Lords).
We wonder why we serfs do this. Perhaps we have so many immigrants with serf and slave heritages that they are comfortable with it or comforted by it, but not even Marx would have imagined Democratic Feudalism.
Universal Preschool: Expensive and Ineffective