This question already has an answer here:
I'm on a tight budget and need to replace my brake pads. However, I've been told by my mechanic that if one does so without replacing the rotors, they will be "mismatched" and that will cause the rotor to warp and the brake pad to wear down quickly.
Is there truth to this? I get the feeling that it's bogus, but I want to be sure
Please note: this is a different question than this one over here, as I am specifically asking if in normal wear situations, replacing a brake pad without replacing an undamaged rotor will cause issues due to them being "mismatched" -- which is not answered satisfactorily in the linked question.