I'm not emo, or goth, or anything like that. I'm a very happy and lively person, but I find black clothing to just be easier. It matches with everything and you don't have to spend a ton of time trying to match colors, it makes you look slimmer, it keeps you warm in the winter. I just like it. But I've been told that people might think I'm emo or something like that because of it. And my family really doesn't like it. So what would you think of a girl that always wears all black?
I completely understand your points as to why you like wearing black. I wear black clothing often fkf the same reasons as you. I do see your friends' and family's point about not liking it as well.
Most colors go with black, so maybe try to add a pop of color here and there to break things up a bit? It doesn't have to be much either. You could wear different-colored shoes, a bright necklace or bracelet, or have a colorful handbag. If you're still not comfortable with that, that's your choice. You need to be comfortable with what you're wearing.
Personally, I'd think that this person is too lazy to choose something other than black. Black looks good on everyone, but it gets boring when you wear it all the time. Honestly, I wouldn't wear black all of the time because I like a pop of color on me. Live and let live.
I like wearing black clothing as well and I'm not emo, goth or nothing like that either, I just like it because it makes you look slimmer. I'm actually wearing a black t-shirt with Flawless 95 and it's white and I'm wearing black pants with leapordy flip flops :)