@Borderline Religion and culture can be horrifying weapons that make people disregard each other. Depending on what they've been taught, they may see as ANYONE with physical structures that aren't normally on a human body as creatures, mutants, or monsters, so not worth any positive attention past gawking at them as a spectacle if they are docile/calm.
Edit: and even then, we've had stuff like this in real life too, where people pay to see people who are disfigured or born slightly different.
Edit: and even then, we've had stuff like this in real life too, where people pay to see people who are disfigured or born slightly different.