Even in the year 3000 there will be groups of people living a "traditional life". Adults will identify themselves as "men" or "women"; and their bodies will reflect this basic biological distinction. They will appreciate gender-specific differences in talent and behavior. They will have families and raise children. And they will still work for a living - actually enjoying the challenge.
The "traditional people" of the year 3000 will be considered "backward" and "primitive" by their contemporaries. They will be discriminated or even
persecuted by the mainstream lifestyles and dominating rulers. Therefore they might retreat to remote areas, where they can live their lives
in relative peace. Some of these traditional people might have strong religious or philosophical believes; but others might be secular and science
Perhaps these traditional people will develop special talents (such as the Mohawks who have left their reservations in Canada for many Generations to work as construction workers on the high-rise buildings of Manhattan). The "traditional people" of the 3rd millenium might be particularly clever to teach highly gifted children or train robots humanoid behavior. They might still have social skills that most of their contemporaries will have lost. Perhaps they will develop and train the numerous "service and convenience robots" that their contemporaries are using in their daily lives. The "primitive" social relations of these "traditional people" might help them to create service robots which are less neurotic and less hysterical than those created by the "normal" people of the year 3000.
Such a traditional sub-culture might flourish in a civilization of hedonists, consumers and addicts (World 3). This civilization would be
dominated by ideosyncratic population groups that have "specialized" to such extremes that outsiders might be offended or disgusted with their particular
appearance, behavior or worldviews. In our time, many people are disgusted with drug addicts or compulsive gamblers or dislike "shopping queens"
or "party people". By the year 3000, all idosyncratic groups will have developed to such extremes, that more traditional people will put off and
disgusted with such a live. These "outsiders" might eventually try to find a satisfying alternative in "traditional" forms of relationship, work
and living environment.
In a civilization of warriors, tribes and despotes (World 2) traditional people might become particularly fierce warriors - similar to the Taliban or the Islamic State terrorists of today. They might follow very ancient traditions of social and family life. Traditional subgroups might also exist in a civilization of scientists, artists and philosophers. In fact, this could be the most benign environment for such people. They might be highly respected "teachers" and "educators" and run "conservative" schools and universities - quite similar to monastic and religious schools and universities in the 19th and 20th century.