Senior citizens with extra seniority

Yiayia:  What does this form mean?

Lisa:  You need to sign it in order to keep them from raising your rent. It's supposed to stay the same because you're over 65.

Yiayia:  Good, I'm 81, so since I'm even older that's even better.

Lisa:  Well, not really.  It doesn't matter how much older than 65 you are.  Just anyone over 65.

Yiayia:  But I'm a lot older than 65, so it must be a lot better for me.

Lisa:  It's everyone over the age of 65.  You could be 67 or 127 years old and it wouldn't make a difference in this case.

Yiayia:  (clearly not believing)  OK.

Lisa:  Do you see what I'm saying?

Yiayia:  Why are you always saying things just to argue with me?