Brake pads/shoes durability

[komichal]

Hi folks,
we have had a discussion with a few folks here about our cars and it turned out that they are changing their brake pads after like 30,000 kilometers because they are completely off.

My current set of brake pads currently has 60,000 km and still looks far from being worn out. Previous set of brake pads lasted 80,000 km. Rear brakes have never been changed so far, neither drums nor pads. Still around 2mm of pads now, after 140,000 km.

I am not a slow driver and I do not drive highways only. But the brakes seem to exceptionally durable on Yaris.

Which leads me to a question - the drums are rusty. I know - rusty drums are kind of normal but my drums are rusty AF - especially on the edges of the drums there is like 5mm of total rust, I can peel off thick layer of rust with just bare hand and not so much effort. Drums inside (where the shoes are in contact with the drum) are shiny metal without rust and still enough material there - so that is OK. But I am not sure whether so much rust along the outer circumference is normal. I think I have never seen it on any car before.