Haven't had a chance to read the replies but I'll say my 2 cents worth anyway.
FYI my children are going to a local (ish-short drive) primary which is really really good so I've not had to ponder private for them at primary school.
My friend, however, lives across town in a loveyl house (so she really doesn't want to move, it is their "house for life") but her primary schools are apparently shit, she was a teacher, so has her own reasons for thinking they are shit, and apparently the school is on special measures or something.
So she's paying probably about 10k a year to send her 2 children to a private school, which starts at 2 and a half and builds up to full days by about 3 and a half. She has a terrible school run, due to the traffic situation between her home and where this school is located, there is no parking nearby, its all double yellow lines, so she has to walk for ages and have a general stress depending how late she is running, and you apparently cannot be late, you can be thrown out, so added stress, etc. But she has to do this trip 4 times a day, because she has to drop them both off at half 8, then pick the younger one up at half 12, then go back and pick the older one up at half 3 or something, so its just back and forth all day.
Our group of friends invited her to a little holiday at Centreparcs we are planning for June, its the last year we can do a "holiday" that isn't during half term or school holidays and therefore 3 times the price, and she can't go because she can't get them out of school. We were just saying, look just tell them, don't ask them, they don't legally have to be there yet, and you are the paying customer so tell them you will parent how you see fit thank you very much etc. She said they would probably throw them out (which makes me think they are not acting in the children's best interest if they really would do that!) so she can't go. Its not that she doesn't want to go though, because she was trying to convince us to go in late July during school holidays but we said no flaming way, its treble the price.
They seem to have 2 hours of homework a day as well from age 3!
Thing is though, we have a very good grammar school in this area, one of the best in the country I think, so its all about getting them into that. This school is all about getting them in...I think 14 of the 18 going for it from this year's lot got in, so they get good results.
That aside, I think she's bonkers, kind of...she's a teacher, if she sent them local, saved the money, tutored them herself or got them a tutor, and just nurtured their education a bit, supervised homework and let them learn through play, they might also get in if they are bright enough!
I'm not anti private at all, I went to private grammar schools (different country) but I still think she's bonkers...its so much money for so much hassle and her daughter has been tired and emotional since she went full time, she's half the girl she was, though I expect she'll get used to it eventually. Just make sure its all the right reasons and that you can afford it and that it doesn't impact too badly on family life I guess?