I would say yes, because brands do take care of latest trends. You think your are fashion conscious and you want to look glamorous, in this case brands can solve most of your dilemas.
First of all, you get the idea of latest trends at the advent of a new season. Brands come with their latest offerings and they display them at the most happening shopping complexes of your city. So half the job is done by the brands. You just need to pick your items according to your choice.
Secondly, for man one can say that 'brand maketh a man' on the line of 'clothes maketh a man'. For girls they can choose wide range of ethnic wear from popular stores, and they can personalise outfits with a little innovation by themselves. But for men you can see that they are all made by brands. From shoes to belts, from vests to ties man has no choice but to follow brands because otherwise they don't look fashionable or worst i should say presentable.