Marketing is not one of those things we learn at the elementary schools. The majority of the people got exposed to marketing when they become adults. This makes it a bit hard for them to understand the marketing concepts when they come in contact with it. And some adults are lazy and they fail to acquire basic knowledge about marketing and advertising. Definitely when they attempt at either of the two , they will definitely get bad results and end up concluding that they are suck in marketing and advertising. Some people understand this basic concept but they don't have patient to practice it consistently so that they'll be able to know it inside out. I want other members to also contribute to this and tell us the reason why they think people sucks in marketing and advertising.