is advertising really necessary? Billions of dollars are spent on it every year, so it must be important. After all, it's a busy world. You have to advertise to get people's attention to sell products! But there is a downside to this. Researchers say that ads can negatively influence people to make them feel like they should be someone else. They argue that the ads are deceptive and create a false sense of reality. Research has even shown that many children can't tell the difference between an ad and real life! Others believe there are too many ads and that they make cities look unattractive. Some cities are Paulo, Brazil, that prohibited ads such as outdoor posters and billboards 2 Over 15,000 billboards were taken down. This has caused people to look at their city in a new way. Before, their attention was constantly drawn to the large number of ads on the streets