casual dress

why casual dress is so familiar to wear now? and why people must have casual dress to wear? modern human wear dress not only for making the body warm and comfort, but also to get other people attention, to show their social status, to be more popular. there are so many reason to wear pretty dress. all people, especially women, they are so concern about what they should they wear, in order to get better reputation. but recently men are also concern about what they wear too.