I have brown hair and brown eyes. My wife has blond hair and green gray eyes. We have a son with red hair and blue eyes. And yes he is my son. Genetics are weird.
Can't just implant a 90 year old liver. And a lot of them are unsalvageable. Doesn't mean it shouldn't be mandatory, just that it will still be a limited resource.
Basically every dutch home has one. Both houses and apartments. We call it the gang. Or hallway? It's usually where the coats are hung, toilet is and stairs are.
Mechanical tomatoes if you will.