Perfect example. I have no kids, so I simply leave the school board positions blank. Most of my relatives kids are in private school, so I have zero information. Occasionally if I know one of the people, or dislike one of the people, I'll vote for/against that person, but for the most part I leave them blank.
Amish may have also turned out just to vote for the President (and maybe some other top offices).
Again, "the English world" is foreign to them, what do they care about public school boards?
What you have to remember is that school boards are funded by your tax dollars. Even if you do not have children in school, you have a financial stake in how public schools are run.