I understand that modern outer layers are more functional. A leather jacket, for example, can be dressed up or down so as to be worn in a variety of situations. It is also better at keeping you warm.
However, I think capes/cloaks are more aesthetically pleasing garments. It also feels good to have the fabric flowing around you as you walk. But what do you think?
They’re fine with you being a rude jackass, why would they care what you wear?
I’m nice to all of them, because they’re dressed normally.
I don’t get it. OP asked a question and I gave my thoughts. I don’t think my thoughts are far off base. Folks may not like them and that’s fine.
If I saw someone show up dressed as in the picture OP shared, I would immediately think this person lacked maturity. If anyone thinks that somehow looks suave or debonair, they are mistaken. If my friend showed up dressed like that, I would ask what he was doing. I would still be friends with him though, because it’s just an article of clothing. But I think if you’re trying to make good first impressions and you show up dressed similar to the picture in the OP, you may not get the reactions you’re looking for.
But by all means, go for it. It really doesn’t matter.