Mine all left home fully equipped to run their own home. They were responsible for washing their own clothes from the age of 14 onwards (I still washed sheets, towels etc and anything special) They could all cook a basic meal and would all hoover up without being asked or nagged.
I once went away for a weekend and came home to an immaculate house and dinner cooked for me. It was only when a neighbour told me several days later that I discovered they had a big party with their guests staying over for Sunday roast lunch.
I really can't understand why people would find this unusual. Surely a huge part of parenting is to ensure that they go out into the world ready to deal with it.