I think the problem is that because many of our prejudices are developed gradually as we grow up, or taught to us by our parents, they may not seem like prejudices to us - because they're so innate. We may act on them, but to some of us I think they're almost like habits - going unnoticed until they're pointed out to us, at which point it may be too late to change, or the "habit" to embedded to be removed.
And besides that, nobody likes to admit they have prejudices, because we all like to think we're absolutely lovely :3
Personally, I genuinely do think I have very few prejudices because of the way I was raised, and the people I was around. My stepdad was very homophobic, racist, etc - and considering how much I hated him, I knew from a very young age that anything he did/thought wasn't something that a decent human being would (that would be one of my prejudices right there
). So in a way, that helped me to be really tolerant and acceptance.
However, I'm somewhat intolerant of people who aren't tolerant... which is a flaw I'm working on xD When people express their dislike of particular groups, differences, thought processes, etc - and don't have a good reason - it really gets on my nerves, and I feel the need to "educate them"
So that's probably be my
big prejudice. I have a pretty intense dislike for anybody who's close-minded, bigoted, discriminatory, chauvinist, etc.
I also have a bit of a thing against "stupid people", but as I've grown up I've learned to redefine my idea of true intelligence, which has helped that slightly. I used to think that basically if you weren't smart in the way I was, you were an idiot, but I've since learned there are lots of different kinds of intellect. So, that's a prejudice I've almost gotten over...