Continuity of staff is a quality measure, not a rostering detail
Turnover is usually counted as an operational nuisance. It should be counted as a change in what children receive.
When an educator leaves, an inventory leaves with them. Not the written records, which remain, but the unwritten holdings: that this child will eat if the bowl is placed rather than handed, that these two must be separated before the transition and not during it, that this family is anxious for reasons that were explained once and never written down. That knowledge took months to build, it is not transferable in a handover, and it is rebuilt slowly by whoever comes next. During the rebuild, the room is measurably worse at meeting children, no matter how skilled the replacement is.
That is why continuity belongs in the quality conversation rather than exclusively in the staffing one. A service with stable relationships is doing something for children that a service with the same qualifications and the same program and constant churn cannot do. It is worth tracking honestly, worth naming in team conversations, and worth treating as evidence rather than as an administrative statistic. It is also worth protecting in the small decisions, because continuity is more often lost through an accumulation of reasonable short term moves than through any single event.
There is a related cost that rarely gets acknowledged. Educators absorb distress as part of the role: the child in crisis at the door, the family under pressure, the difficult conversation held with composure and no visible reaction. That absorption is real labour, it depletes, and unlike physical labour it does not stop when the shift ends. Services that make space for it, through genuine debriefing rather than a line on a form, retain people longer. Services that treat it as an individual resilience issue are quietly asking their workforce to fund the gap personally.