Then the household is planning two things at once. Qualifying children are included in the initial application with their own fees and gift amounts. A child outside the described category needs an independent assessment of whatever options exist for that person. Discuss both before committing, so nobody discovers the split after payments have been made.
Talk to the older child directly
An eighteen or twenty-year-old has views about moving countries, and those views change what the household should plan for. Ask whether they intend to relocate, study elsewhere, or stay put, and treat the answer as information rather than an obstacle. A young adult who prefers to remain behind removes a constraint and a cost; one who wants to come needs a realistic account of what is uncertain.
Neither conversation improves by being postponed. Talk to the older child directly and treat the answer as information rather than an obstacle. A young adult who prefers to stay and study elsewhere removes a cost and a constraint; one who wants to come needs a realistic account of what is uncertain and why.
Neither conversation improves by being postponed until after payments have been made. Where one child qualifies and another does not, the household is planning two things at once: qualifying children are included in the initial application with their own nonrefundable processing fee and further gift amount, while a child outside the described category needs an independent assessment of whatever options exist for that person. Decide both before committing.