To become really skilled at drafting, one needs to learn how to draw by hand first. I have observed that most of the people who draw beautiful drawings on a computer learned to draw by hand first. People who never learn to draw by hand first tend to leave important details out of their drawings. These jobs make good use of visual skills but some people will not be able to do them well due to motor and coordination problems. Stay out of this field.
Jobs are scarce and the field is overcrowded.
There are many more jobs in industrial, communications business and software design computer programming. Another bad thing about this job is exposure to violent images. Businesses are recruiting immigrants from overseas because there is a shortage of good programmers in business and industrial fields. Help people find information in the library or on the Internet. Noisy environment may be a problem.