No. Other applicants still need the relevant eligibility, relationship and admissibility assessment.
Avoid a family-wide inference
A child’s citizenship does not replace the principal’s EB-1/EB-2 requirements or establish visa availability. Review eligible spouse and child derivative cases individually. Eligible children generally must be unmarried and under 21; assess any applicable CSPA protection on the individual case facts.
The official materials describe a gift to the U.S. government and a separate non-refundable processing fee, with amounts stated per person for eligible joining family members and different terms for a corporate framework. Problems arise when a household treats the gift payment as a guaranteed immigration result, overlooks a family member's separate issue, or relies on a superseded fee statement. Separate travel dates do not necessarily require omitting an eligible spouse from initial planning, so clarify the intended application and arrival sequence. Identity and civil records, immigration and travel history, the material supporting the eligibility theory, and each family member's own records are four different groups answering four different questions.
A marriage, a birth, a child reaching an age threshold, or a separation during the process can alter who is included and therefore what the arrangement costs, and an agreement written around a fixed household will not answer the question.