My ds's school always makes them choose 4 A levels with a view to the vast majority of them dropping one. Maths and Biology are his favourite subjects and, in the case of maths, his strongest (got high 8 in the Y10 mock). With biology he has been slowly improving throughout Y10 and is now on a 7. He has always said he'll do chemistry as well in case he wants to go down a medical or other stem route. He gets 8s in the end of topic assessments but got a 6 in the mock, so we are waiting to see what he gets in the mocks that are up and coming, but he is determined to take chemistry - school will allow as long as he gets 6.
After saying for months that history would be his fourth subject as he enjoys most of it and got an 8 in the mock, he has suddenly said he's going to put psychology for his fourth subject and has pretty much admitted it's because his best friend is doing it.
My question is, if the step up to chemistry proves too much and he ends up dropping that, what would maths, biology and psychology be like as a set of 3? I'm worried it's not enough traditional stem but he will have closed the door to humanities as well. He is good at German and the teacher is trying to persuade him to take that but he's adamant he won't and I'm sure it's because he knows it would be a small class with people he doesn't know/like and he would have to talk a lot.
I'm worried he's choosing things for the wrong reasons and is going to make things harder for himself down the line. Thank you for any opinions/advice.