Why do people just make assumptions about other people without actually getting to know them first?

I asked one question and so far 2 people have responded with “ugggh not another one of those questions”!! If it really bothers you that much then just keep scrolling. I mean if you’ve seen a lot of questions like that then that’s on you, I didn’t ask all those other questions. Just this one and I asked it because I’m genuinely curious about it. Quit being rude please and stop and think before you say something. Maybe you’d find out that I’m not some annoying troll and I’m a genuinely curious person and have a reason behind why I asked it.

THANK YOU!! Hope everyone has a wonderful day and a wonderful Christmas!
Why do people just make assumptions about other people without actually getting to know them first?
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