Because a) they think it's cool and b) it relates them to normal people
Everyone uses slang. Name any famous person -- yes, they use slang, too.
Yes, all of them. Everyone uses slang.
Writers use slang to make their writing more relatable and engaging to a specific audience. Slang can also add authenticity to dialogue or help establish a certain tone or setting within a story.
People use slang so that other people won't know what they're talking about.
Always. People started inventing slang as soon as they invented language.
It's difficult to pinpoint an exact number, but use of slang is common in many cultures and languages around the world. Slang is often used in informal settings and varies among different age groups, regions, and social groups.
Some common slang words used by black people include "lit" (exciting or excellent), "flex" (to show off), "cap" (lie), and "fam" (close friend or family member). These terms are often heard in casual conversations and social media.
It is a slang word for people, made famous by a Harry Enfield character.
Anybody can(and will).
100%. Everyone in the world uses slang.
It appears to me that the majority of Londoners use slang.
Australians do!