It's not just people. I work in a building from the 80s and we are currently replacing all the cast iron sanitary lines that are basically crumbling. They cut

It's not just people. I work in a building from the 80s and we are currently replacing all the cast iron sanitary lines that are basically crumbling. They cut costs by buying Chinese cast iron and we are paying the price now. The plumbers I've talked to say this will be a major issue in the coming decade as all "the chickens come to roost".