When parents choose a nursery, they typically focus on the physical environment, the ratio of staff to children, the Ofsted rating, and the cost. These factors matter, but they miss the element that research on childcare outcomes consistently identifies as the most predictive of how well a baby or toddler will fare in a nursery: the quality of the relationship between the child and their key person.
Understanding what the key person approach is, what it looks like in practice, and how to assess whether it is genuinely implemented (as opposed to nominally present) at a setting helps parents ask the right questions and identify the quality that matters most.
Healthbooq can be shared with a nursery key person, giving them a reference for the child's health and development history and a place to log daily observations that the parent can review — extending the connection between home care and nursery care.
What the Key Person Approach Is
The key person approach, required under the Early Years Foundation Stage (EYFS) framework in England and equivalent frameworks in other nations, means that every child in a group childcare setting is assigned a named adult — the key person — who takes primary responsibility for that child's settling, daily care, developmental observation, and communication with parents.
In practice, the key person is the adult who greets the child at drop-off, manages the settling routine, provides physical care (nappy changing, feeding) for that child wherever possible, observes and documents the child's development, and is the primary point of contact for the parent. The relationship between the key person and the child should ideally develop into a secure, specific attachment — the kind of relationship that provides the child with a safe base from which to explore the nursery environment.
Why It Matters: Attachment in Group Settings
Attachment research applied to group childcare settings has shown consistently that children who form a secure attachment relationship with their key person have better outcomes across all measured dimensions — emotional wellbeing, exploration and learning in the nursery setting, language development, and social development with peers — than children who do not have such a relationship.
Young babies, particularly under twelve months, are at the stage of forming specific primary attachments. Placing a baby under one year in a group setting without a secure key person relationship — where multiple adults care for the baby without any individual developing a specific knowledge of and relationship with that child — is at odds with what the baby needs developmentally at that stage. The ratio of one adult to three babies in nursery (the EYFS minimum for under-twos) does not itself provide this relationship; what provides it is whether one of those adults is consistently present for that specific baby and is developing the attunement that characterises a real relationship.
What Good Key Person Practice Looks Like
In a nursery where the key person approach is genuinely implemented (not just nominally present in paperwork), the key person: knows the child's individual preferences, rhythms, and responses; is visibly warmer and more attuned in their interactions with their key children than with others; is reliably present at drop-off and pickup times where shift patterns allow; is the one who provides physical care for the child wherever possible; and has regular, meaningful communication with the parent about the child's day and development.
Red flags that the key person approach may be nominal rather than genuine: the parent cannot name the key person after two weeks; the key person does not seem to know the child's name, specific preferences, or routine; multiple different adults carry out care for the baby on a single day with no one adult taking primary responsibility; the key person is frequently changed.
Asking the Right Questions When Visiting
When visiting a nursery, the most useful questions about the key person approach are: "Will my child have a consistent key person, and how much continuity can you provide given your shift patterns?" "How is the settling-in period structured, and will my child's key person be present throughout?" "What happens if my child's key person leaves?" "Can I meet the key person who has been assigned before my child starts?"
The answers reveal whether the setting has genuinely thought through how to implement key person practice in their specific operational context, or whether it is a policy that exists on paper but is not reflected in how the setting actually runs.
Key Takeaways
The key person approach — assigning each child in a nursery or group childcare setting a named key person who takes primary responsibility for that child's care, settling, and developmental records — is one of the most important quality indicators in childcare. It is a statutory requirement in the EYFS framework in England. Research consistently shows that attachment security in childcare settings predicts developmental outcomes, and the key person relationship is what provides this attachment base in a group setting. The quality of the key person relationship is the single most reliable predictor of how well a child adapts to and benefits from group childcare.
