When the same day to day life is defined in different time and space by various generations, both old and new, the way it is defined and explained takes a new outlook altogether. The culture, value & social system, financial condition, modernity, technological advancement, lifestyle and trends in which the term is defined automatically takes all those elements along with it.
When I asked a PG classmate of mine casually in a friendly telephonic conversation about her married life and how her life has transformed after marriage, her instant reply was - "i have a new roommate of the opposite sex.' There stopped our discussion about married life.