I think this is a good exercise for students. It does matter what subjects they take in high school. If your child is good at everything, take all the advanced subjects.
Choosing a career has so much to do with other goals such as raising a family, location (including staying in one place or constantly moving), social skills - and many others.
My daughter is in 8th grade and has chosen Neuroscience. She hopes to attend Colorado College, a gifted liberal arts college where the courses are interesting.