Which countries allow you to adopt at 21 years of age?

Countries that allow adoption at the age of 21 include the Philippines, where the minimum age is typically 21, and several states in the U.S. that permit individuals to adopt at 21, although requirements can vary by state. Additionally, in countries like Colombia and South Africa, individuals can adopt at 21, provided they meet other criteria. It's important to check the specific laws of each country or jurisdiction, as regulations can change.