Not sharing my child's life in an intimate daily basis is incomprehensible to me. It would feel intrinsically wrong on so many levels. Basically an awful lot of the pleasure and shine in my life would disappear if I didn't live with my child.
There were some boarders at my school. Some as young as 8/9. What tended to happen was the boarding children tried to form intense relationships with the older girls higher up the school.
New boarders were forlorn for weeks and months. Most of them finally adapted and became hardened to it. Not a very cheerful or warming experience for any child to be honest.
I'm still in touch with a few of them. They have a fairly detached relationship with their parents. But I guess this doesn't bother their parents over much, as they weren't overly concerned about being that close to their child when they were growing up.
Interestingly none of them have sent their own children to boarding school.
People say that 'boarding school gives so many wonderful opportunities and experiences'. I doubt it can ever compare to the wonderful experience of growing up in a home with loving parents who make their child an important part of their daily lives?
On the other hand, if some parents genuinely believe that paid strangers in an institutions can do a superior job of raising their own child, then probably a boarding school is the best place for the child. Because their home life with parents who weren't prepared to put their heart and soul into parenting (or at the very least make some effort day to day) would probably have been worse than boarding.
At least the teachers and house mothers/fathers are paid to show an interest in the children and act in their best interests. If a child has never known what it feels like to have a parent who is so bonded with them that they couldn't contemplate not sharing their childhood, then the child will never miss it. Paid gestures of affection and funded displays of interest and commitment from the boarding school staff will probably seem like the genuine real thing to the child. Because they will never have known the genuine real thing.