A common desired date is a planning goal, not proof that every person’s processing and documents will be ready together.
Track individual readiness
Keep separate status entries for each family member and discuss school or employment deadlines before making commitments. Ask counsel what is needed for each person’s move and any proposed staggered arrival. The programme’s expedited description does not remove the need to verify the family’s actual immigration position.
Individual readiness varies more than families anticipate, and the household moves at the pace of its least ready member. Track each person separately: whose passport expires within the period, whose civil documents must be obtained from another country, who requires a translation, whose own immigration history raises a question needing advice, and whose circumstances might change during the process. Identify the longest of those chains at the outset and build the plan around it.
Avoid setting a common moving date before those are resolved, and avoid making irreversible arrangements for the household — ending a lease, giving notice, withdrawing children from school — against an assumption that everyone will be ready together. Where one person's readiness is genuinely uncertain, decide in advance whether the family would travel in stages, and confirm each person's status for the whole period.