As they promote good peer relationships, they help children learn the skills they'll need for good sibling relationships. Some children regress in their behavior when a new child arrives. Children may be more demanding, have more toilet accidents, or they may have trouble sleeping. Although these problems can be annoying, parents shouldn't worry about them too much. They usually disappear in three to five months.
Many children show signs of greater maturity when a new sibling arrives.
They may take pride in showing that they are different from their little brother or sister because they can dress themselves. This is a great chance to praise children for helping in a stressful situation. Remember, though, that the same children who are showing off their new skills can also be showing immature behaviors. A good sibling relationship is more likely if parents value it. Parents should think about the way they would like their children to behave with each other.