How does temporary emergency foster care affect existing children in the household?

Temporary emergency foster care can affect existing children through changes in their emotional environment, relationships and sense of responsibility. The impact is different for every child and depends on their age, temperament, previous experience, understanding of fostering and the needs of the child placed with the family. A well-planned placement should take account of the whole household, not only the needs of the child arriving.

Existing children may experience mixed feelings. They might feel interested, proud or pleased to help, while also feeling uncertain, jealous, worried or frustrated. An emergency placement can involve a child who is distressed, withdrawn, angry or unsettled because of what has happened to them. Existing children may not know how to respond to behaviour they have not seen before. They may also worry that adults will be more concerned with the foster child, or that they will be expected to behave differently because the household is fostering.

These reactions do not mean that fostering is unsuitable for the family. They are useful information about how the child is coping. Children should be able to describe their feelings without being criticised or made to feel responsible for accepting every placement. A child who is reluctant should be listened to carefully, particularly if they identify a safety concern or a problem they cannot explain easily.

The effect often depends on the child’s developmental stage.

• Young children may find it difficult to understand why another child needs additional attention or why the household feels different. They may show their feelings through clinginess, sleep problems, toileting changes or challenging behaviour rather than through conversation.
• School-age children may ask direct questions about the foster child’s background and may compare the rules or treatment each child receives. They may need simple explanations about why some information is private and why fairness does not always mean everyone receives exactly the same support.
• Teenagers may value being treated as mature members of the household but may also need more independence and control over their personal space. They may be concerned about how the placement affects friendships, study, social activities or their relationship with their parents.

Existing children should not be expected to act as unpaid carers, counsellors or protectors. They can be kind and welcoming, but responsibility for supervision, communication with professionals and responding to difficult behaviour remains with the foster carers and the relevant adults. This distinction helps prevent a child from feeling that something is their fault or that they must manage situations beyond their age and experience.

Household safety and privacy need particular attention. Before a placement begins, adults should decide which parts of the home and which belongings are private, how children can ask for help, and what they should do if they feel uncomfortable. Existing children should know that they must not share personal information about the foster child at school or online. They should also understand that they can speak privately to a trusted adult if they are worried. These expectations should be explained in an age-appropriate way, without giving existing children detailed information about the foster child’s history.

It is also important to avoid making assumptions based on a child’s past experiences. A foster child’s behaviour may reflect fear, grief, disrupted relationships or uncertainty, but existing children do not need to interpret or diagnose it. Adults can acknowledge what is happening in simple terms, such as explaining that the child may need help to feel safe, while avoiding labels and speculation.

Existing children should remain included in decisions that affect them. They cannot decide every aspect of a placement, especially when an urgent safeguarding decision is needed, but their views should be sought and taken seriously. The fostering assessment should explore how each child feels about fostering, what support they may need and whether the proposed arrangement is appropriate for the household. This is particularly important where there are concerns about bedrooms, personal belongings, pets, transport, school commitments or previous experiences of trauma.

Practical steps can reduce pressure on existing children:

• Give them an honest, age-appropriate explanation of what emergency fostering involves and what is not yet known.
• Arrange regular one-to-one time with each child, rather than relying on family conversations alone.
• Keep important commitments and interests under review so that children do not feel they must give up everything to accommodate fostering.
• Agree who they can approach if they feel worried, unsafe or overlooked.
• Provide space for them to spend time apart from the placement when appropriate.
• Check in after the placement begins, as a child may initially appear comfortable and only later show signs of strain.

Adults should look for changes that persist or interfere with a child’s wellbeing, including marked withdrawal, ongoing anger, loss of concentration, physical complaints, disrupted sleep, regression or reluctance to be at home. Such signs do not prove that fostering is causing the problem, but they should prompt a calm conversation and, where necessary, advice from the fostering service or another appropriate professional.

Children in the household may also develop useful understanding from fostering. They can learn about difference, care and the reasons children sometimes need help from another family. However, any positive learning should be allowed to develop naturally; existing children should not be praised in a way that pressures them to hide difficult feelings or appear endlessly patient.

If the effect on an existing child becomes too great, the foster carer should raise this with the supervising social worker and the wider fostering team. The response may involve additional guidance, changes to how adults manage contact and supervision, or a careful review of whether the arrangement remains suitable. The wellbeing and safety of every child in the household must be considered throughout a temporary emergency placement.