Michigan’s State Board of Education is now calling for expanded funding to pay for universal preschool for 3- and 4-year olds.

One could hope that this news story slipped through a worm hole from a parallel universe in which Michigan has a budget surplus, where businesses are flocking to the state to take advantage of a business-friendly tax structure, and where government-funded preschool strongly correlates with future educational performance.

But no, the es from our universe, where the state of Michigan faces a major budget shortfall, has been chasing businesses and workers out of the state with a business-unfriendly tax structure, and where, as Carrie Lukas notes, new data shows that government-funded preschooling does not give children a “Head Start”:

The Head Start program was launched in 1965 and today provides subsidized preschool for about 900,000 children from e families at a cost of more than $7 billion. The logic behind Head Start is that it is more than just a transfer program (subsidizing childcare for e Americans). Head Start champions argue that the investment in higher quality preschool will lead to better educational es — and therefore better life prospects — for participants. The government books are ultimately supposed to benefit due to participants’ reduced use of welfare programs and greater economic productivity.

Unfortunately, there’s very little evidence to suggest that this is how it actually works. The Health and Human Services department released a congressionally mandated study that examined how former Head Start students fare. The study revealed that what gains Head Start participants enjoyed during the program all but vanished by first grade. In other words, the billions invested in Head Start failed to change the prospects of participants in any meaningful, measurable way.

And keep in mind that Head Start has achieved these disappointing results while bringing kids into preschool who are at higher risk ing from dysfunctional home environments. Imagine the effect if Michigan begins subsidizing children out of generally healthy home environments and into public preschool?

Certainly preschool is a good option for many families, and there are many loving, conscientious preschool teachers touching the lives of young children in positive ways. But none of this means the government should be in the business of providing free preschool for anyone and everyone. State governments should focus on their petencies and let families do what families do best–raising children.