@lawquestion DD is a barrister but quite a few of her friends are city lawyers. If you look at summer city law internships, they might offer 2 sessions for law degree students and 1 session for non law degree students. The reason for this is they don’t want identikit employees. People with a MFL degree, History degree or any academic subject where dc is a high achiever is fine. My DD did the law conversion course and it’s around £12,000. Several of her friends studied History and she did MFLs.
City Law likes high flying people. So brains matter I’m afraid. As does ability to work long hours and attention to detail, as well as personality. This is why Oxbridge people can do well. A couple of DDs friends have a LLM from Cambridge too. If dc work for an American firm, expect extraordinary long hours.
For A levels, academic subjects are best. For example, Cambridge recommends 2 from English lit, History, MFLs and Maths. Obviously 3 could be from this group. They have a long list of acceptable third A level subjects and they do include Law. He might also consider Economics, Politics, Philosophy etc. Essay subjects which require reading and analysis are good. He needs to demonstrate intellect and work management. Many dc doing law are also multi talented.
Then consider university. A few require an entrance test, the LNAT. These are the premier universities for law. London firms do recruit a lot from Oxbridge but unis like Durham, Bristol, UCL, LSE are popular. If he is ok working regionally, then add in Birmingham, Manchester, Nottingham - these don’t mean he could not work in London of course! Regional firms don’t recruit many from Oxbridge.
Some areas of law are less competitive. Criminal law for example. Developing and following a strategy to get where you want to be matters! Tick the right academic boxes and quite a few others, and you have a chance! I agree that if academics is too average, it’s probably not worth dreaming.