Many parents would like to believe that their children are perfectly happy with the way they look and that their appearance is one of their least concerns among other pressing matters. But in truth, a lot of kids deal with body issues, and as early as the age of five, they may start to express concerns about their shape or appearance. Girls, in particular, start to feel dissatisfied with their bodies at a very young age, and a study has revealed that 6- to 8-year-old girls wished that they were significantly slimmer than their current figure.