Many small things connected together and various reasons. Some are brought up as a child to think and believe a certain way and disregard everything els basicly. Some do it for self preservation, where the reality is too much they create a fantasy to live in to protect themself. So many just shallow minds also, but kinda cause of how society works. The less questions you ask the better, the less you think the better. Less and less people get to know themself really which is the biggest enemy when it comes to evil in the world really. You expand the mind through yourself, by embracing ideas, thoughts or even just meditating and take time for yourself and be alone with your thoughts. I think for example entertainment is a good example. If you watch movies/tv shows that make you think diffrent or deeper about things you naturally would do so. But in todays society mindless is most popular.
It amazes me how often no one recognizes the clarity of my argument and the correctness of my opinion. I'm right you know.
Defenses. When you are up to no good you know to keep a good defense and part of that is rejecting anyone that might change your mind or call you out on your game.
Watching to much Fox (Faux) News!
Ignorance, old age, or how they were raised will do it.
old age? you young whippersnappers dagnabit!
After years of living a certain way, some people do get very set in their ways and beliefs, but this isn't a universal trait. My mommom admits this is the case with her though.
It`s simple really, their minds are narrow.
Knowledge OR ignorance ba<x>sed on being lazy
Ego? Because they want to be 'right'?
beliefs from their parents.