How long should OE brake pads and rotors on front wheels last before replacement

Can't answer specifically for Audi , but I can say driving conditions and habits (some forced, due to other peoples driving) can shorten the lifespan dramatically. I work at a Honda dealership and saturday I inspected 2 2013 4Cyl. Accords , one had 32K on it and the right front outboard pad was at 1/32" , the other Accord had 33K on it and still had better than 7/32" on the thinnest area of pad (about 2/3 of original pad thickness). First was all beltway(D.C. area) traffic jams , the other was highway mostly. How many miles does yours have?