What Is the Age Required to Go Into the NFL? What Is the Age Required to Go Into the NFL? Related Articles 1 What Education Is Needed to Become a Professional Football Player? 2 Beginner Soccer Player Salaries 3 Become a Minor League Baseball Player 4 What Is the Maximum Age in Order to Join the Military? Although you may have dreamed of becoming a professional quarterback since you were a kid, you cannot play in the NFL until you’re an adult.