Are you saying that you do or don't want to wear old fashioned clothes? Because the first part of your paragraph suggests that you don't want to, but the ending contradicts and says you do.

I wouldn’t wear such these clothes because they are very old fashioned. Fashion has changed a lot and nobody wears such these clothes nowadays. Although, the outfits are very similar and only differ in color, I like this style because it looks very smart. I like this style although every outfits are very similar and they are only differ with colours. I like these style because people used to wear very smart clothes.