Why do kids get made fun of because of clothing?

Other kids are just cruel, ignorant and try to live up to trends. I realize it is easier said then done because personally I grew up with hand-me-downs and all my other friends had brand new clothes all the time but I didn't care - I was dressed, clean, fed, and had a home and you appreciate those small things when you know there are others out there that have less and your parent(s)/guardians try the best they can. Don't ever let others bring you down or get to you as they are just not worth it - just shrug it off and go about your day, when they realize that you are not letting them get to you they won't find a need to do it anymore because it isn't fun for them and will find someone else to try and pick on. (unfortunately - that's what bullying is about) Hold your head up and always be proud of what you have and who you are - don't ever let anyone get you down.