Good refactoring vs. bad refactoring(builder.io)

  users_adult = [
    user
    for user in users
    if user.age >= 18
  ]

  float Q_rsqrt(float number) {
    return 1 / sqrt(number);
  }

    class User {
        // Convenience function to check if the user is an adult in their current location
        boolean isAdult() {
            return this.location.isAdult(this);
        }


        boolean isOfDrinkingAge() {
            return this.location.isOfDrinkingAge(this);
        }
    }

    interface Location {
        boolean isAdult(User u);
        boolean isOfDrinkingAge(User u);
    }

    class WeirdLawsLocation implements Location {
        boolean isAdult(User u) {
            return switch (u.gender()) {
                case MALE -> u.age() >= 16;
                case FEMALE -> u.age() >= 18;
            }     
        }

        boolean isOfDrinkingAge(User u) {
            return u.age() >= 21
        } 
    }

    class SwedenLocation implements Location {
        boolean isAdult(User u) {
            return u.age() >= 18;
        }

        boolean isOfDrinkinAge(User u) {
            return u.age() >= 18;
        }
    }
    var sweden = new SwedenLocation();
    sweden.isOfDrinkingAge(user);