Right, I am going to be crucified here, but here goes.
We sent our 8 year old away to boarding school (dh is RAF and we where posted from England to Scotland, and back again).
We had 14 house moves in 8 years - so think 14 schools.
By age 8 my daughter had had 4 schools. She was the new girl all the time and bullied.
We sent her away. She loved it.
She is an only child. At boarding school she had loads of sisters.
She is 21 now. At uni studying law. Comes home every weekend for free food (plus she has a weekend job).
We have a lovely relationship. We are very close.
It is easy to sit on a sofa, watch an edited TV programme and criticise.
The families featured would not have taken this route lightly, believe me.