I had a friend as a teenager who attested to himself not being rich and that his parents were simply people who worked hard. He told me that his father had failed all of his A-Levels (British university entry qualifications) and that his mother had been forced to leave school at 13 and go to work in her parents' shop.
They are now upper middle-class.
I checked his father's LinkedIn profile and it turns out he went to private secondary school before studying further to become an independent financial advisor somehow, though no university is mentioned. I don't know anything about his father's parents but to be able to go to private secondary school implies some kind of wealth to begin with. Also, he hired his wife who dropped out of school at 13 in a salaried role at his business.
I'm in my early 20s. I'm frustrated. It's not fair. It's all about who you meet, not your education or abilities.