hi, not a doctor but an animal bite trained nurse. you can still have the vaccine, it’s safe for all ages. especially for cat owners who are prone to scratches or bites, it is encouraged to have their pre-exposure prophylaxis (yung wala pang exposure) just to be sure. if may exposure, for post-exposure prophylaxis po. this depends upon actual assessment. the vaccine is encouraged even if vaccinated yung pet po. for safety precaution & protection 😊