&gt; It&#x27;s optional; there&#x27;s no public preschool, mostly just Christian private preschools that are effectively a less-religious outgrowth of catechism<p>There are, in fact, public, private secular, and private non-Christian religious pre-schools. However, few (though not <i>no</i>) states in the US have <i>universal</i> pre-school (that is, a mandate that every child is <i>entitled</i> to a pre-school education and can receive it at a public school at no cost unless the parent chooses something else.)