One wants one's work to be the world, but of course it's never the world. The work is in the world; it never contains the whole thing.
Ever occur to you why some of us can be this much concerned with animals suffering? Because government is not. Why not? Animals don't vote.
The motives of these parents vary, many parents don't like the curriculum being taught to their kids, or are wary of the threat of peer pressure or the presence of drugs or violence lurking in too many of our schools today.