In most places, FM can only be taken if as a 4th A Level. It couldn’t be taken as one of just 3. Many places timetable FM with Maths and don’t give the full teaching time for another A Level.
I’d imagine few applicants with FM have just 3 A Levels. When AS was a thing, perhaps they might then, but much less likely now.
The only people I’ve known who had FM within just 3 A Levels started with 4 and dropped something they were weaker at because of health. Given mitigating health circumstances, 3 including FM would be considered okay for those elite courses. Other students who had a 4th which was outside STEM occasionally find they aren’t doing so well with that other subject. They might look to drop it, to ensure they only have A star predicted grades. However, unless there are other mitigating circumstances to suggest it’s okay, only having 3 including FM is a bit of a red flag.
Yes, it’s all about info given in yr11. There is a problem when students go to 11-16 schools and the advice given them lacks the investment that a 11-18 place has. The school won’t be dealing with disappointed yr12 who can’t apply for what they want to and the college might not have a clear enough sense of who with L9 in Maths is a genuine contender for FM and A star at Fm and those elite courses. People slip through the gaps.
What these very able teens need is an advocate - someone who tracks them from about 13/14 and helps them understand what an academic pathway looks like. EBACC helped with that but is falling off now. There are outreach programmes from this age from unis and some areas have school programmes to address this, but some do t and people do fall through the cracks. Plus, what is clear is that often students need to hear the message more than once to understand it and so do parents. They all need encouraging to think ahead and not just to the immediate decision being made. It’s not easy for teens to do this. But you can guarantee that those in selective schools will be doing it and making sure the doors remain open.
Again, some people seem to take this discussion as suggesting any courses which aren’t Imoerial/LSE/Oxbridge are being suggested as inferior. Or that because so few go to these courses at these places which have these requirements, that it doesn’t matter. No-one is saying that someone who doesn’t do FM or who goes to another uni has poor career prospects or that everyone should aspire to the particular courses that require FM. It is quite simply that for a small number of students, the option to apply should be available. That requires the relevant info and someone making sure the yr11 really understands the implications then. Clearly, lots of very informed people don’t know the implications, so it’s not surprising teens don’t either. LOADS of misinformation from parents, other students and schools exists. It often sends a message if ‘do what you like best’ as being the only consideration. Of course it’s a factor…but there are others too.