OP I have not rtft but I will say this. My parents look like this on paper and on social media. They have their mortgage paid and lots of money, a holiday home, savings, holidays, the lot If you read their FB profiles you would think that we were a big happy family enjoying lots of social events but the reality is very different.
I have been NC with them for years due to their emotional and physical abuse of me and my children. My father is a bully that everyone panders to and he treats my mother like dirt. My mother threw me under the bus and abused me too not to be bullied herself. My brother is a manchild who has had his debts paid off by my parents many times. Their relationship with my brother's children is unhealthy. They have basically been brought up by my abusive parents because they took over my dn's lives from birth and my brother and SIL could not be bothered to raise their own kids. As a result, my poor dn's are completely controlled by my awful father and brother and SIL got no say in their upbringing. They are grown up now so too late that will never change.
On paper I am a little more chaotic, I have very little money, but no debts. I own a small home but I have to scrimp and save to do major decorating jobs. We go on holiday every other year or have weekends away. I provide a nice life for my kids and we manage to have lots of fun and they are safe and happy, but I am nowhere near as affluent as the family I left behind. I do not post on facebook much unless to keep in touch with a few friends from school and uni former colleagues etc and let them know how me and my family are doing. I do not have a huge facebook persona with hundreds of "friends" I have never met, where I post every detail of my life and show off everything I have.
I honestly don't know if this makes me "happier" than my family, since I have to deal with the pain that they left me with, but I do think I have more integrity and my conscience is clear regarding choices I've made and the way I treat people.
Sorry to be a downer, I know this is supposed to be lighthearted but just wanted to put that out there.
How we perceive people as being properly adult, or successful or happy is probably quite subjective.