Roads, are designed for the main users - people, driving. So self-driving cars have to cope with that. But we'll soon get to the point where some road markings / signs are changed around to make them more obvious to self-driving cars, in order to avert rare but costly accidents. The point to watch out for is when the self-driving cars are the primary users, and the needs of human drivers start to fall away as not important any more.

Domestic furniture will continue to be designed for both accepting the human posterior and for interacting well with domestic automation.

Related: License plates have been designed to be machine readable for decades.