I applied for a position, and the company got back to me with an interview invitation. I accepted, the interview has been scheduled, and the time confirmed. Following this, I had a conversation with my mother who brought up a consideration about the job that didn't previously occur to me (it's location is less than ideal, if you're curious). I don't want the job anymore, but should I cancel? Is going ahead with the interview unethical, as it disrespects the interviewer's time? But I also don't want the cancellation to be a "black spot" on my record.
Another consideration is that another company sent an interview invitation for the same time, but my main concerns are the ethics and my professional reputation.