@KnitWittedNan my post didn't mention housesharing, casual sex or getting drunk 🙄 so I'm not sure how you read this in my post.
I said 'friends, hobbies, boyfriend, travel, whatever'.
Clearly this wasn't a comprehensive list and the 'whatever' covers a huge range of things she could be doing that would be far more worthwhile and healthy than this.
She could become a master at anything. She could become fluent in language(s), work at being a master at chess, a sport, volunteering, anything.
She could really delve deeply into a subject of interest in her spare time and gain a real breadth of knowledge in something. Ancient history, medicine, pet care, politics, carpentry, who cares. Anything worthwhile.
Instead she's sitting in a room alone for Lord knows how many hours, so she can memorise pages of text in a scattergun approach to subjects - and get yet more functionally useless GCSEs and A Levels. Ticks on pieces of paper. Woop.
Encouraging and supporting her to do this is shitty parenting imo.