This is a very general question: are our notions of maturity, in the psychological sense, essentially modern or have they always existed in one form or another?
As recently as fifty years ago it was considered normal, even healthy, even proper, for a young woman to live with her parents, in her family, till marriage. With the rise of feminism and the changes in societal norms such customs have largely vanished from the mainstream by the 70s. I’ve known of women of my generation who remained with their parents who took a lot of flak (that’s putting it politely) from friends and family members, many of whom found it odd, immature, that these women didn’t move out and live in their own. This struck me as cruel. Who decides what’s grown up? Our peers, psychologists?
A hundred years ago, even in America, it was common for people to live in the same community all their lives. People moved around more in the States than elsewhere, yet even here people tended to remain in their “regions” (the South, the West), and in certain kinds of places, with city folk tending to stay urban, country folk often shunning the city or suspicious of people with city backgrounds, who were often regarded as unscrupulous.
Where am I going with this? Our society has changed dramatically, thus an individual’s evolution, in a broad sense, is considered desirable as much in terms of geography as class. Once upon a time it was considered a good thing, a normal thing, a mature thing, to stay put, work the farm one grew up on or continue farming on one’s own (newly acquired) property. The sons of tradesmen as often as not became tradesmen, the sons of ministers, ministers, and so on. Today, I notice, it’s almost the opposite, at least where I come from (the urban northeast), as staying home, doing the same thing your father did, not moving on to another town, up in class or out in some geographical sense (i.e. out of state, to anotjer part of the country or even another nation) is considered backward, if not immature somewhat backward.