With an open kitchen unlikely to be satisfied with the traditional three-generation family clearly educated division of roles and responsibilities of family, in which the individual household members lead a different lifestyle. If the family is large and preparing food takes up most of the day, with open plan kitchen living room will take over some of its functions – with all the smells, noises, bustle. The visit will be associated with confusion and adaptation of the rest of the family to this situation. Opening will be even more problematic if the official guests visiting family members with whom I do not want to share the details of the life of the kitchen.Sometimes the living room is treated as a reserve bedroom. In this case, open kitchen will be embarrassing for both parties – those who are asleep, and those who rummage surreptitiously at night in the fridge.