Hi Dayle,
This is a very good question that each career college and instructor has to collectively answer. Students enroll in programs for which they have no interest so they are hard to motivate and please in terms of instruction. These students need to be referred to the Students Services Office for career counseling. If is unfair to the other students, you the instructor and them to remain in the class if they really don't want to be there.
Another criteria for accreditation is placement. If a student is retained even if he/she is not doing the work or attending classes they will not be available for placement. Retention and placement go hand in hand in terms of successful programs. If a program is not producing well educated and training graduates it won't be long before the employers won't hire them.
So instructors need to do all they can to keep students engaged and progressing in their programs but if the student doesn't put forth the effort then it is time for them to leave or enroll in a program that interests them.
Gary