Exactly this.
Very few children board from 7, or even 11. Those that do are often not full boarders, often doing just a couple of nights a week, so it’s more like a sleepover with friends. Boarding schools have changed hugely over recent years.
Plenty of parents put their babies into nursery, from 8am-6pm, to be looked after with groups of other babies by total strangers. They get dropped off for breakfast, picked up after supper, and taken home. Their parents may only get an hour or so at home before it’s time for bed. They have their naps as a group at nursery.
Lots of parents let their children roam the streets, not knowing what they’re up to, or are happy for their teens to spend nearly all their time in their room, eating and gaming or being on social media chatting to strangers.
Despite many parents who do these things, it seems to be that parents who choose to use boarding school are fair game for criticism on Mumsnet. Children spending their formative years being looked after as a group of others by strangers, or being let loose on social media is arguably far more damaging to a child that then spending a few nights a week with structure, discipline and enjoying their time with friends. There has been a huge rise in mental health issues over recent years. Why is that? It’s certainly not because of a tiny percentage of children who board.
Boarding school is not for everyone. Mine don’t want to, but have many friends who happily board. Everyone makes different parenting choices based on what’s right for their family. I’d certainly say that spending a few nights a week at school is far less damaging than lots of other parenting choices I see.