I jsut don't find it very helpful to categorise it as such. (not meant ot sound as uppity as it does)
I could not contemplate being away from my 2 currently. they are 6 and 4. I had a night away in December (talking about leaving after lunch one day, back mid mornign the next), and a short weekend away (fri lunch to Sunday lunch) last summer. ans that's it. I don't enjoy being away from them (although god knows I could do witht he break at times).
apart form that, the only time I have been away form dd1 was when I was in hospital having dd2.
but, having been to boarding school (as a teen), and having always done a long school day (at prep school I was at school until 6, then went straight to ballet fo ra few hours), I am not sure I could deny my children the chance to experience some of the things that I expereinced while there.
I do not work. I will probably never work full time, due to dd1's SN. so we will always have massive amounts of school holiday time together, and hoidays as a family.
I do not think I could selfishly hold my dd2 back, if she wants to go. whatever happens, she is likely to be in a private school, even if she does not board.
and, as happened with me before I eventually started boarding, I shoudl think that once she gets into the choir, orchestra, school play, house play, sports teams, sports clubs, art clubs etc etc etc - she won't be coming home straight after conventional lessons anyway. the only difference once I started boarding was that I slept at school, not at home.
when I was a day pupil there, I woudl arrive at 7.45am (due to mum needing to get back for work), and be picked up at 9.30pm. we had a half hour journey back home. I got home and went ot sleep. boarding was way more convenient for all of us, tbh. mum didnt have to turn out late at night to pick me up, and I got to hang around with my friends more (and what teen doesn't want to do that?)
and then I was home at the weekends, and spent time with my family then. and all thourgh the holidays.
I don't think turnign it all into a "well i must be more closely attached ot my children" kind of judgement is being fair. it all depends on the situation (schools wise) in any given area, and the interests and hobbies of the children involved.