There is a certain age you'll reach in life and you'll get tired of the whole process that brings money. Infact, you'll hate to chase money, but rather to spend it.
I don't think many people will choose to work for money if they have its sources directly connected to them, we all love easy money and to spend money. So this is regardless of whether you are old or young, it's all about being a human being. Unfortunately, you will mostly work for the money you own, that's the rule if you want to own it legally.
The only person that will reach the age of retirement and choose not to retire is he that has not attained financial freedom.
You are very wrong about this statement. Have you thought about those who are in the line of work they have passion for? Retiring from it is like killing their joy. Everything is not about money.