@bruffin - I can only sugges t that you do some thorough, un-biased research on HE in the UK and elsewhere. I highly doubt anything on a MN forum can convince you otherwise.
I make that suggestion with a rather large pinch of salt; I doubt it'd do any good, but there you go. I can remain hopeful 
You can't give your child a full education single-handly
Many primary schools are an example of this. One teacher (maybe a ta) to 30summut kids.
If you include tutors, other parents/relatives, Scout leaders, sports coaches etc (many of which you could describe as an 'expert' in their field, rather than a single primary teacher who knows a bitabouteverything, master of none), I'd say that's a preeeeetty good example of kids' not being taught by a single person.
My HE kiddos are also encouraged to find the answers themselves, research etc, instead of being rote taught. "A good teacher tells you where to look, not what to see".
Its controlling
No more than deciding to chuck your kids in a school from t he off.
You choose what they learn
So do schools. Except many HE will ask their children what they want to learn.
You control who they talk to
Again, so do schools. Kids are forced into classrooms of 30 of their peers all with birthdays within a 12month period, with one adult if they're lucky. They're then told who to like, what to play, what to talk about and when... If that isnt controlling, what is?
Have we got it wrong?
Well, I guess the proof will be in the pudding. Who can really say? I'd like to speak to scholl educated children 10,20 years from now and see how their childhood, or lack of ( I debate whether school =childhood), has affected their adult lives.