Took my Accord 2013 Tourer for a service the other day 4 years old and 32,000 miles. The garage suggested the pads and disks needed changing ... I can see the pads have limited life but do the disks really need changing at this mileage?
If it was 32 miles of motorway driving with minimum braking then maybe it would be considered too soon, if it was hard driving then no, city driving stop start, maybe. As said above, ask to see disc measurement, as there is a minimum recommended width, if you're a mm or two over the garage could be just doing preventative maintenance.