Because it carries history? Because it’s different? Or because it’s believed to keep away evil forces and bring good energy and luck?
All of the above, but also to give your character something that will attract more attention and give people an idea about who you are and what values you have even before you speak a word.
It shows that you have appreciation for history. That you carry the traditions and the wisdom of our ancestors. It shows that you have a sense of style that allows you to mix these traditions with your modern looks and your personal style.
It shows that instead of doing what everyone else does you have proudly chosen your own path. You’re not scared to be different.