I used to teach people I worked with when in my first job at 18+, working with people in a fast food style place, sometimes adults my parents age had never started investment accounts, and barely had any savings.
Really sad to see, I wasn't from a well off family, but my family has had good returns from stocks for generations, various professionals, lawyers etc, real estate holdings etc.
I tried my best to convince them to save even 10% of their money for the future. Most of them wanted easy "get rich quick" schemes.
I recall one lady for squandered her money on herself, like weekly nail salon/hair style stuff, constant new clothes and shoes and coffee and donuts and cigarettes and alcohol everyday for 40+ years, she had NOTHING saved. A career cashier in her late 50s. Her husband worked, and they had a few kids. But she spent all of her money on herself. A very selfish and "me first" type of person. [MOD EDIT]
With my own parents and siblings, we share investment ideas, my parents are comfortably retired now with a few million between them.
Not having a mortgage for the last 23 years of their working careers really helped them supercharge their retirement savings.
I am already around $30k ahead of where my mother was in my retirement accounts then she was at my age.
I don't think I will ever get married, but I will be very comfortable once I start adding real estate, once I get to at least 6-8 duplexes or two apartment buildings or one big one, that can provide at least $8k a month cashflow I will retire.