What is the age limit for a child under immigration purposes?

For immigration purposes, a child is defined as someone who is under 21 years of age. This age limit is significant because it not only impacts eligibility for certain immigration benefits but also affects family reunification processes and the ability for individuals to derive immigration status through their parents or guardians. The designation of a child under 21 allows for protection under specific provisions, such as the ability to apply for special immigrant juvenile status and certain applications under the Violence Against Women Act (VAWA). The choice of 21 years as the cutoff aligns with broader immigration policies that prioritize the welfare of minors and young adults in family contexts, reflecting an understanding of their developmental needs and circumstances.