It would be biased put in the context of "I'm deciding if I should skip college, is that the right decision?" and using those as your main data point to find your answer.
An exaggerated analogy to show what I mean about selection bias:
"Those who chose not to have sex before marriage, do you regret that decision?"
An exaggerated analogy to show what I mean about selection bias:
"Those who chose not to have sex before marriage, do you regret that decision?"