You will get a split on opinions about this topic. Do 8 year olds cut weight? Yes. Should they cut weight? No...unless they have a significant amount of body fat and cutting the weight would improve their health. I know a parent that is so concerned about weights. Which weight class should his son wrestle? Watch you eat this week. He moves his son up or down weights for certain tournaments. Cant wait to see how that turns out in about 10 years. Wrestling is a sport that is already taxing enough for kids. Add cutting weight to the mix and that is why a lot kids quit by time they are 17 or don't care as much.