Perhaps policies differ from community to community. We live just blocks away from all three public schools - elementary, middle, and high school. In our town, we're not permitted on school grounds at all after hours. Technically, we're not even permitted to park there (though people frequently do at the elementary school when the ball field across the street has no more spaces. The police just look the other way). Town council and the school board does hold meetings at two of the schools after-hours.
And we pay a heck of alot in property taxes, most of which goes to the school district, even though we don't even send our children there.
In our town, we're not permitted on school grounds at all after hours.
Interesting, the different approaches. If the policy of your community is that the school will only be used for government business and off-limits for public use, then I can understand your position.
I wonder how common it is for communities to have the facilities of their public schools unavailable for use by the public?