Drafting is not a big money job, I'd definetly say it's a temporary job/between job to work up until you finish a major degree in Engineering, unless you plan to do other jobs at the same time, like sell stuff.
That's exactly why I became a drafter... It was so I could have a decent job while I was in school for a major degree. I've been a drafter for 2 years, and have about 3.5 years left til I get my bachelors.