Much better looked after, and much more economically too. When the council, many years ago, decided to do a full refurb of these houses, they reroofed 1 in 3 of them, leaving the 2 in 3 rooves untouched. I asked why at the time, and the answer was it was just a completely random reroof policy. The 2 in 3, many of which are now private, still have their original rooves, with no issues, 40 years later.
My roof, is the original one. Earlier in the year, I had a roofer friend replace 100 tiles which were chipped, from my stock of tiles. No chance of leaks, because there are three layers of tiles, over the entire roof. The new rooves, only have two tile thick rooves.