I actually am, sometimes I judge people on the smallest things too
And once I've got a negative opinion about someone, it's extremely unlikely I'm going to change it because I'm too stubborn
I've been working on not being as judgmental with appearances and impressions, but I still maintain my own standards with experiences (as in, don't judge a person by their look, but feel free to if you've had a bad experience with them, or know someone who has etc).