I think you need to know your kids well and give them guidance related to their strengths and interests.
If they did well in HS, college could open many doors, and some doors may require grad school too.
If they are more social, less academic, some sales jobs might require less or less specific academic training.
Are they entrepreneurial (run a lemonade stand as a kid etc), maybe start a business, maybe college business school.
For my family, wife and I both ended up in careers very closely related to our education.
I studied Comp Sci and Econ/Bus, ended up in IT for financial services.
Wife went to law school and practices law.
But that is not to say everyone does so, know lots of law school grads who do not practice law.