I'm the same way with 'career aspirations' - it's like everyone else got some sort of crash course in how to care about their jobs/careers and I didn't. A lot of my friends in University ended up going into teaching, but my god, I couldn't fathom spending my entire life in schools when I had already been in school for 23 years and couldn't remember ever NOT being in school. So, yeah, it's more that I only ever knew what I DIDN'T want to do, but if I had no strong feelings against something, then *shrug* I dunno!