This could really make a cute room or two and maybe even a challenge. Imagine that your Sim family must be eco friendly and do the whole homeschool thing. You must find a way to socialize well though but that could even be done within the context of a large family or via the internet. Oregon is one of the best states in the US for homeschooling, by the way. Our resources here are almost limitless and the community of homeschoolers, and the support, is huge.
This might be a bit more difficult to accomplish if you don't have Ambitions but I bet it could be a really cool challenge, especially if you did it with some modified legacy rules. I'll have to think about this but I bet I could come up with a cool challenge or contest.