Although a six-year-old child may feel independent enough to brush and floss their own teeth, it is important for the parent to monitor their child until they are at least eight years old.
It is common for a child to miss surfaces while brushing because they lack the coordination to reach all areas in the mouth. Be sure to brush through a second time, reaching areas that they may have missed such as their molars.
Help older children by being creative and supportive. Try rewarding good brushing habits.