The idea that people "need" to be taught evolutionary origins is nothing but petty bigotry.
The rationale for this mind-control and enslavement is the idea that people who believe in creationism are irrational and therefore incapable of making a positive contribution to the great "we" -- society. I note that this assumes two things: that creationism is irrational (I'll grant that many folks think this is proved, not assumed), and that there is some objective standard of how human lives should be spent contributing to society, some standard which says that a life spent one way is "right" while another way is "wrong," measuring according to some metric that I can't fathom about what's "best" for "all" (for sufficient values of "all" that actually, as far as I can see, actually translate to "some").
So let me give you those two points for the moment. I'm going to tentatively agree that creationism is irrational and that it is important to make sure that everyone is rational so that they can "contribute" to "society" or whatever the heck it is you hope to achieve out of having everyone aware of evolution.
Here's what you're missing: nobody is 100% rational, 100% of the time, on 100% of issues. It's not necessary for everybody to understand every piece of truth in order to function productively.
A lot of smoke is blown about how if kids aren't taught evolution they won't be able to be scientifically productive. Horse manure. It ain't so. You can have wrong ideas about what happened 7000 years ago, or 4.5 billion years ago, and still think quite rationally and scientifically about other things.
There's not a lick of evidence provided for the idea that kids need to be taught evolution in order to grow up capable of making a positive contribution to their society or their country. It's something we're just supposed to accept because men of bigoted faith like Richard Dawkins say so. And I'm not willing to see people enslaved (have their freedom taken away in the form of being forced to submit to compulsory reeducation of ideas their parents quite legally believed) just because Richard Dawkins is a bigot.
When I was in first grade my teachers encouraged other students to make fun of me and shame me because I couldn't crayon within the lines of coloring pages. This was cruel abuse, but I realize now it's symptomatic. School is systematically teaching the values we vote on, and today it's created a society that ridicules and shames people of faith, with the bigoted idea that they are 100% irrational.
Speaking of which, this is why I think a school system that is run by democracy is bound to failure. We could vote to teach everyone evolution, but we could just as well vote to teach them the Flying Spaghetti Monster. We could vote to teach everyone that homosexuality is acceptable, or we could vote to teach that such people should be stoned. If you really want your kids to be educated according to the consensus of scientists, then the absolute last thing that you should want is to have them in an educational institution run by a democracy.
(This is also a large part of why I won't vote. Remember when you're casting your vote next year in November about who is going to be my tyrant and king for the next four years and overrule the free choices of me and my children -- that I will not be making any such choice for you. I would never treat you that way.)