Assess eligibility for the immigrant category that would follow before considering payment, confirm each family member's inclusion, then verify the current official terms on a recorded date. Because vetting precedes the gift and children age out, the order in which these steps are taken affects the outcome.
Put the questions in an order that protects the money
Hypothetical example: Bronwyn's Callander family is deciding how to sequence a Gold Card decision. The sequence people are encouraged into runs backwards: decide to pay, then discover what else is required. Reversing it costs nothing but time.
Bronwyn should first establish, with proper advice, whether she could qualify for the employment-based category the process routes applicants through, since that assessment governs everything after it. She should then establish which family members can be included and what each adds. Only then does the current official framework need to be read closely on a recorded date, with attention to what happens at each stage and to what is payable when.
Two timing risks deserve their own note: a child approaching twenty-one, and the possibility that published terms are adjusted between the day a family decides and the day it pays. Where a family concludes that the arithmetic only works if every member is included, the age question should be answered before anything else, because it is the one variable that keeps moving while everyone deliberates.