The best age for your to child to start learning how to care for their hair is when they begin to show an interest in combing it. It differs with each child. Keep in mind, children learn hygiene from their parents. Hair care is a major part of hygiene. Use this time to bond with your child, teaching them basic lessons on how to properly use a comb and brush and the importance of having clean hair. Try to encourage hairstyles that reflect what you and your child both like. This will help them value their independence as they undertake their new role in personal hygiene.