Why guns? ( edit)

I'm not from the US, never been there, but I'm confused as why do citizens feel the need to own guns? To protect them from what?

I'm just curious honestly as this is new to me, I've been to over 10 countries around the world and i understand that every country deal with it share of crimes but never met a person who owns a gun. Does this mean that it's okay to shoot/kill people in America ?

And if you're a gun owner yourself have u ever used it? have u shot anyone? And if it's just for protection does this mean that there are many criminals in the US? And when is it ok for u to use a gun?

I'm only asking those questions out of curiosity as i mentioned before since it's very strange to me, and I'm not judging or bashing I'm just trying to understand the concept behind normal civilians owning a gun.

PS: decided to make this post anonymous since it's a sensitive subject for some people and it makes others angry i dunno why.

Edit: thank you for the clarification, i find the hunting part interesting tbh, never done it before, and i personally enjoy shooting at a range, it's like a sport to me since it's in a safe environment with experts and tournaments and so on, but never thought of owning a gun in real life, maybe because in my country or my culture that's not common.

but honestly now the idea of visiting America is scary, you girls made it sound like the crime rate is very high, and many of u said that they've dealt with robbery and so on. It seems like there's alot of violence there. Stay safe everyone 🎉 and do what's best for u.