Cross-boundary families are the defining Hong Kong case. Where one parent lives in Shenzhen or elsewhere in the Mainland, the plan has to address cross-boundary schooling, the control point used for handovers and who holds each child's Home Return Permit. The Mainland Judgments in Matrimonial and Family Cases (Reciprocal Recognition and Enforcement) Ordinance (Cap. 639), in force since 15 February 2022, allows custody orders made under Cap. 13 to be recognised on the Mainland. That is a strong reason to turn the agreed plan into a consent order rather than leave it as a private document.
International families face a different risk. Many plans involve a parent whose employer may transfer them abroad at short notice, so the relocation clause sets a written notice period and requires a proposed long distance schedule with the notice. Leaving relocation to be "sorted out later" invites a contested leave to remove application at the worst possible moment.
Households with a domestic helper or grandparents need their own wording. In many families the helper handles the school run and much of the weekday care, so the plan says whether the helper may accompany the children to the other parent's home and how a change of helper is communicated. Employment terms stay with the parent who signed the employment contract, under a separate foreign domestic helper hiring and termination pack. Grandparents' time is best provided through a parent's access.
School places turn on residence. Under the Primary One Admission system, the child's home address, normally the home of the parent with care and control, determines the school net for central allocation. An ambiguous residence clause can cost a child a place in the preferred net.