I agree, no5no5. Common usage holds that hothousing is NOT desirable when it comes to children. I think that saying "our kids are all hothoused" is wrong-headed.
I'm also reminded of the term "hothouse flowers," which means flowers that are weak and unable to survive outside of an artificially warm environment, ill-adapted for life where they're planted. So even in the botanical sense, hothousing isn't necessarily a positive thing. Not immoral, certainly, but not a great thing to do if one wants healthy plants.