Welcoming a New Child: How to Prepare Your Kids for a Foster Sibling

Welcoming a foster child into your home is a meaningful way to provide safety, care and stability during a difficult time in a child’s life. It is also a big change for every member of the family, including the children already in your home. Preparing your kids for a foster sibling can help make the transition smoother and help every child feel seen, heard and supported.

Start the Conversation Early

Before a foster child enters your home, talk with your children in a way they can understand. Younger children may need a simple explanation, such as, “Some kids need a safe place to stay while their family gets help.”

Older children and teens may be ready for more details about foster care, including that placements can be short-term or longer-term. Let them know that foster care is meant to support children and families during challenging times.

Encourage your children to ask questions and express any concerns they may have with you. Reassure them that their place in the family is not changing and their needs still matter.

Make Space for Big Feelings

A new foster sibling can bring excitement, but it can also bring worry, jealousy, confusion or sadness. Let your children know that mixed feelings are okay. Helping children name their feelings can make those feelings easier to manage.

It is also important to explain that a foster child may have experienced trauma, separation, neglect or other stressful events. Because of this, they may act in ways your children do not expect. They may be quiet, nervous, very emotional, or have trouble trusting adults. Encourage patience and kindness while reminding your children that adults are responsible for handling hard behaviors.

Set Clear Expectations

Before the new child arrives, talk about what may change at home. Be clear about routines, shared spaces, toys, privacy and family time. Discuss what items are okay to share and what items are special and can stay private. If children are going to share a bedroom, talk about personal space, quiet time and boundaries. If routines may change, such as bedtime, meals or car rides, explain what your children can expect.

Children often feel safer when they know the plan. Writing down simple house rules or routines can help everyone understand what comes next.

Children in foster care may come from situations where boundaries were not respected. Keep conversations simple by reinforcing body safety, personal space and the importance of telling a trusted adult if they feel uncomfortable.

Involve Your Children in Helpful Ways

Kids may feel more comfortable when they have a role in welcoming their foster sibling. Depending on their age, they can help set up a bedroom, choose books, pick out a game for family night or help explain household routines.

Keep responsibilities simple and age-appropriate. Your child should not feel responsible for fixing, parenting or protecting their foster sibling. Their most important job is to be kind, respectful and honest about their own feelings.

Keep Communication Open

After the foster child arrives, continue checking in with each child. Set aside one-on-one time, when possible. This reminds your children that they are still important.

Family activities like movie nights, walks, games or meals can help children bond without pressure. At the same time, allow relationships to grow slowly. Some children may connect quickly, while others may need more time. Welcoming a foster sibling is an adjustment, but preparation can help your family create a home where every child feels safe and valued.

The Center for Family Safety and Healing’s Fostering Connections Program offers comprehensive health care services for children and adolescents placed in foster or out-of-home care, including support for behavioral health, developmental needs and care coordination.