Becoming a draftsman is a good career path, but it can also lead to other careers that you never thought of even trying before.
It often happens that a student starts working for a certain goal and decides that one aspect of that career is more interesting. For example a person working to become a nurse may become a hematologist in the end. Nursing was just the taking off point.
A career in drafting may lead you to a teaching career, a career you never anticipated on going into, but very rewarding.
Some students find they like their field so much they want to expand their education in that field. A draftsman could attend more schooling to become an engineer.
Drafting is often a springboard to bigger things.