Are American youth avoiding adulthood?

There's irony to be seen in watching young adults acting like children, especially on American campuses. Almost every culture save one has provided young men and women with a rite of passage from childhood into adulthood. That "one" is America. It is an important rite that allows a person to be accepted by their community as an adult. More importantly, to put the community on notice to stop treating one as a child. Without such a rite, The person and the community suffers, especially when persons of the opposite sex treat a person as a child without realizing that they may be titillating a young adult. Lacking such a rite, American boys adopted the driver's license as their rite of passage. I find it interesting that so many young adults in America are clinging to childhood, living in parents basements, harboring themselves under the umbrellas of their parent's health insurance, allowing the state to finance their avoidance of adult responsibility while they pursue meaningless shades of education, and all the rest. Coincidentally, many are not getting drivers licenses let alone purchasing a car of their own. Interestingly, Lyft has memorialized this cultural drift in their recent IPO, declaring that individual car ownership is becoming a thing of the past and thus, their service is a great investment opportunity to fill the gap in transportation for a non-driving public.