That is governed by the current official terms and should be confirmed there directly. Do not assume the derivative rules of the investment categories carry across.
Family terms are programme-specific
Households frequently assume that the family provisions they have read about in the investment categories, such as the inclusion of a spouse and unmarried children under twenty-one, apply automatically to any route. That assumption is unsafe here. The treatment of family members under this framework is set by its own published terms, including whether family members are included at all, whether any additional amount applies to them and how their status is documented. Read those terms directly, record what they say and when they were checked, and where a household's plan depends on a particular treatment of a child approaching adulthood, obtain confirmation in writing before committing funds rather than discovering the position afterwards, when the transfer can no longer be reversed.
An initial review captures the dated official terms, the correct individual or corporate pathway, every person's eligibility, the source of payment, and the later immigrant-category processing issue identified by the authorities. Relationship documents, ages, passports, and each person’s immigration history may affect later steps, so the principal applicant’s action should not be treated as a substitute for every family member’s review.