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Actually very common to be rich and yet only be able to provide for your kids your poor childhood. I had only because you were only too busy to give them your most valuable assets your physical and emotional attention.
It's not that most people don't have original thoughts it's more like most people never spend enough time to do it alone. People with little agency often spend their time complaining about how most advice don't apply to their circumstances people with agency tend to to read between the lines and find some interpretation regardless of where you are.
Irrelevant to them the original piece of advice even worse before they even became what they want.