After primary school, students should be able to choose different paths for secondary school. Those who plan on working after high school would have a program that is more vocational and teaches life skills, while those who plan on going to college would study subjects that are required for college admission and readiness.
I wouldn't expect a primary school student to really know what they plan to do with the rest of their lives. Maybe this would work but only towards the last year or two of high school - but definitely not from the start of it. That's too soon.