Several years ago there was a popular slogan in the U.S.
"I refuse to grow up!"
Essentially what it eluded to was the mindset that many "Baby Boomers" had. They were not going to embrace getting old and living like their parents! This was the generation that coined such phrases "Turn on, tune in, drop out" with regard to drugs; "Never trust anyone over the age of 30", and launched the "free love"/ sexual revolution
With each passing generation parenting became less strict and in some instances parents strive to be their children's "best friends". Some allowed their kids to drink and get high in their homes, let their boyfriend/girlfriend, spend the night and have sex under their roof.
Children are allowed to curse, ignore, or disrespect their parents without any serious repercussions. In fact most adults introduced to children age 3 and over are done so by using the adult's (first) name instead of Mr. or Ms. blah blah. That use to be a "no-no"!
When I was growing up teenagers counted down the days until they could move out of the house and be on their own whether it meant going to work in a manufacturing plant, military, or going away to college. Independence was something we craved!
Today a lot of parents place no demands or expectations on their children so they oftentimes have no desire to move out. Many of them continue to live off their parent's financially well into their 30s. It's nearly impossible for them to transition into independent adulthood when their parents never made it a requirement.