First year in halls and then back home is pretty common in London. A chance to develop friendships, but avoid the second year grotty flat. It also means that the young person has learnt that the magic cleaning/washing/tidying up/cooking person is real and that they need to pull their weight.
If they did not return home for the second year they often did for the third. As well as saving money they could get the quiet and space they needed for finals and job applications.
I met a student on a train yesterday who commuted to University in London from the South Coast, roughly a two hour journey. He lived in London for his first year and then went up three times a week when he needed to be there in person. Less social life but in this uncertain job market a good degree was the priority. As well as saving money.
Covid, the job market, escalating rents and the better availability of on-line lectures.
I think those who faced Covid in crucial pre and early adulthood had their social attitudes changed. Less FOMO, because they did miss out and survived, and a willing to accept on line interaction in place of in person. Some good things. Drug use when DD started University pre-covid was through the roof. Some bad.