Of course, a good personality does have a lasting effect on mind, one should get well-dressed and groom one-self. It is a one of the ways of self-expression and when you dress good , you feel good and when you feel good about yourself, it has a very positive impact on the other person's mind and they feel good and happy about you too.
But, I'm talking about the certain natural biases that are planted in our minds from birth. Not all of us are like that, but still a number and a big one like,at school level,I mean,apartheid actually happens in front of me. Beautiful people are thought to be good at everything until they they prove themselves wrong and the opposite with normal-looking people. I mean, a fat kid that has never played sports in school is thought like he could never play basketball or why given a chance either, he may be an excellent one in park or else or a diligent, confident, congenial girl is thought to have amazing ideas for the party decorations and not a one lacking self-confidance, not pretty and casual girl. I think that this behavior of our society is because of the natural prejudices we hold or rather because we are very judgemental. I mean, why give a chance to someone who cajole us of his worth or speak for pneself. Then, what will happen to those who don't even know their worth or may be , they know and are dying to come outside but can't because may be, they are difident, introvert. Who're gonna help these people?