Christy - by that logic you think the same of private schools, grammar schools, church schools, single sex schools, schools with a selective intake of any description, schools with a catchment area that isn't diverse?
Yes, fair enough, particularly with private schools and single sex schools (I went to an all girls secondary and I certainly won't be sending my kids to single sex schools!), and that is why I said 'most schools'. Church schools, not so much, because actually in most church schools these days, religion is only a tiny part of what ties people together. And even in my own 'naice leafy outstanding' school, there is actually a huge range of experiences, backgrounds, views, and even socio economic differences, amongst the children and their parents, that I'm not sure you would get in a HE social setting.
Also, and now I making some big assumptions, I imagine that there is less just 'leaving the kids to have to rub along on their own and sort out their own friendship disputes' if the parents are there all the time.
As a teacher, I totally agree with the poster who said that HE is much quicker just because you don't have to keep quietening down 30 kids, going between lessons, getting 350 kids to file in and out of assembly, spend 10 mins waiting for all the kids to find their pencil and actually start writing! 