There is something i know from personal observation about life, that is; Your needs or wants grows with you. Each advancement or increase in pay cheque comes with a relative increase in your luxury lifestyle and to give your family the best your resources can afford should you have a family always kicks in. So, having your future secured depends on your spending habit rather than how much BTC your able to acquire. Money makes more money so, if you acquire, spend and don't invest, you'll still find yourself struggling in future. So, its never always enough until your gone.
I completely agree. Our desires always have no limit. It does not depend on age but depends on temperament. Someone is happy with one bitcoin, while others need numbers with two or three zeros.
The more a person's life becomes secure, the more his appetites increase. Sometimes we are indignant, why do the rich need millions, because such money cannot be spent in a lifetime? I think many will agree that first, everyone wants to feel stability in the future, they want stability for their family, children, grandchildren.
Therefore, everything is obvious here. Having one bitcoin, a person will aim for two, and so on.