singingmum, I see where you are coming from, but honestly, I don't think its to do with HEing or not
I have met some APPALLINGLY behaved HE'd teenagers. Have you been to HESFES? There are some really wonderful examples of teenage human behviour there. There are also 12 year olds smoking, setting light to rubbish bins, letting very large, worrying looking dogs terrorise toddlers, and swinging from basketball hoops. I grew up partly on an inner london council estate, and am not easily intimidated, but jesus, HESFES...
I HAVE also met a very few HE'd kids (NOT locally, I hasten to add) I reckon social services does actually need to be involved with. I do NOT say this lightly, I promise you, but like anything else, it is truly possible to royally screw up HEing.
I have met utterly countless schooled kids who are lovely, confident with adults, articulate, able to entertain themselves, etc etc.
I have concluded thus: it is NOT really about whether you send your kids to school or not. It is truly about parenting.
Unfortunately, I do not know how to bring about this perfect parenting yet