"I had an escort in the 90's and did over 90000 and no sign of disc wear." Since non-asbestos brake pads were legislated mandatory early 2005 (I think), the new harder material substitute for asbestos puts more wear on the discs. And perhaps disc materials have changed, too. Brake pads and discs are expensive items these days, that's for sure.
To entertain myself while driving a low-powered car, for reasons of brake life, mechanical empathy and fuel economy I try to drive my Jazz as a 'momentum' car with as little braking as possible. The idea being to, as far as possible, keep a steady speed while at least keeping up with traffic flow. Requires lots of observation and anticipation. Sad, I know. If my rear discs rust and pit it'll serve me right!