its most common these days
Prejudice is an idea or opinion that disregards basic facts. It's akin to ignorance, or a lack of knowledge, experience or education.
To think that all blondes have painted hair.
Saying that Europeans don’t have good groxxoming
Do not treat people who have spots on their skin that are of genetic origin because you think they can infect them.
Excluding a person just for wearing black and having tattoos
Not accepting older people in a certain group
these are the examples.