I think that's reasonable but perhaps not that important. In a school zone, the neighborhood people presumably send their kids there/have friends kids there, an

I think that's reasonable but perhaps not that important. In a school zone, the neighborhood people presumably send their kids there/have friends kids there, and are likely to slow down anyways. Even if you don't, it could be a useful reminder given that it's a school zone to really take it slow. It's not a perfect solution but with how much cheaper it is perhaps still viable.