At some point, the student is responsible for getting themselves a job. How do you differentiate between a student who is trying and failing to get a job becaus

At some point, the student is responsible for getting themselves a job. How do you differentiate between a student who is trying and failing to get a job because they were unprepared for their field vs. one who decided they don't want to be a journalist/biologist/whatever after all and backpacks around Europe for 2 years?