What is a reason people would avoid you if it's not appearance related? They don't know you yet?

They heard bad things. They saw something on social media about you. Googled you and didn’t like what they read. You have a friend in common that isn’t well liked. They are prejudiced against some trait they know you have. They are anti-social or have social anxiety. They don’t want to engage anyone at all, not something specific about you. They are depressed or overwhelmed by something in their life.

There’s tons of reasons.