snapper_37 said:
I intend to, just out of curiosity more than anything. Why wouldn't I like the answer?
That sort of question is off the record/out of the box. It's a bit more unpredictable. It's away from all your fancy competencies and fancy box ticking imposed by HR/managers.
Some people don't like the answer there are all sorts of things - they might think they are lying, they might think that they are not ambitious, they might worry about them becoming a hippy, it might even threaten their world view.
I'm not saying you are like that snapper, you're just a good egg, but interviews are a funny business where normal rules of reality don't apply. I've had plenty of the why aren't you working as xxx and it's a pretty hard one to deal with as you have to try and guess what to say without being regarded as a geek, a communist or a bum or offending the interviewer in some other way.