There are various reasons for orthodontic problems to show up. They can either be hereditary or develop over time due to lifestyle choices and habits, among other factors.
However, the time during which all the milk teeth of your child have fallen and permanent teeth have grown out is the best time to fix any apparent orthodontic issues that they may be suffering from. Since the bones are still soft, it is easier to manipulate them into growing the correct way.
Of course, not every child needs braces. But there are a few signs from which you can tell that they may require to undergo this treatment.
So if you notice any of these signs in your preteen or teen kids, you should probably consult your dentist about whether your child needs braces or other treatments to fix the issue.