the code doesn't print the you are old statement what could be the reason` import java.io.; import java.util.;

public class Person { private int age;

public Person(int initialAge) {
    // Add some more code to run some checks on initialAge

     if(initialAge>0){
          age=initialAge;


      }
      else{

        System.out.println("Age is not valid, setting age to 0.");
          this.age=0;
      }

}

public void amIOld() {
    // Write code determining if this person's age is old and print the correct statement:
      if(age<13)
      {
          System.out.println("You are young..");
      }
      else if(age>=13 && age<28)
      {
          System.out.println("You are a teenager..");
      }
      else if(age >=18)
      {
          System.out.println("You are old..");
    }

}

public void yearPasses() {
    // Increment this person's age.
      this.age=age++;
}


public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int T = sc.nextInt();
    for (int i = 0; i < T; i++) {
        int age = sc.nextInt();
        Person p = new Person(age);
        p.amIOld();
        for (int j = 0; j < 3; j++) {
            p.yearPasses();
        }
        p.amIOld();
        System.out.println();
    }
    sc.close();
}

} `