I’ve known a couple of instances of this. In both cases, families of a boy and a girl and the boy was sent to private school and the girl to state school.
And in both cases I was friends with the girl when we were both adults .And in both cases, yes it did fuck then up a bit in the inside. Both felt less loved and valued by their parents.
One was open about that and trying to process it, she very much focussed on living her own life the way she wanted to and trying not to give a fuck about what her parents thought. Which is one reaction to being hurt. But she did let herself be angry with her parents and in her early thirties she kind of managed to get past it.
The other was really pretty wounded and had tried therapy but stopped. Her parents had divorced and after the divorce her dad paid maintenance for her but maintenance plus school fees for her brother.
For a while, at least she felt that her mum was on her side, as her mum disagreed with the decision but didn’t have the wherewithal to even the score. (Although she did go along with sending the brother away). But when her mum died she had a nervous breakdown.
She had this quiet desperation about trying to impress her father and his side of the family, to prove she was good enough.
She spoke to me about the difficulties of having to have two accents when she was growing up- one at school so she didn’t get beaten up for being “posh”and another around her brother and her dad so she didn’t get ridiculed for being “common”.
Eventually she emigrated to get a fresh start. She really struggled with making a commitment to a relationship, despite trying really, really hard and being absolute desperate for one.
She was very successful in her career and eventually had a child by going to a sperm bank, because she felt time was running out on her.
Anyways.