Why are lots of people doing engineering these days?Watch
Student life, in partnership with UEA
Also, I think a lot of people who are good at maths and physics at school choose it because they aren't quite so aware of what the career options with those degrees are (e.g. finance, tech, data etc.). When I was applying for university (to study engineering), the later two didn't exist in nearly the same number as today. If you're not from an area where those types of job exist then I suppose it can be difficult to appreciate them as potential options, so you might see only teaching and research as paths from maths and physics degrees.