Some people who don't want to retire early, of course they don't like the challenge of developing more from the work they do, some employees, because some people who choose to retire early, of course they want to build a business to be able to earn more income than working as an employee.
Of course, those who take early retirement just to take care of their family are women because they want to take care of their own family rather than having someone else take care of their family.
Some people who have reached their retirement age they do work it out to extend their stay in an organization they find themselves, I don't know if I should call it greed or not but is like they enjoy what they gain from their place of work and is hard for them to let go.
I don't think is only women who pray to retire so they can go look after their family, some men do have that thinking also, in some cases some people who are not satisfied with what they're seeing at work just see retirement as a way to get out of working.
Don't consider every person who is still at work when they reached a retirement age; as greedy, like I said in my last or previous comment, what is keeping them in that office could be passion, that is, love for what they do, we have many people like that.
Here in my area, I know of an old man who still goes to work, he owns the company, has more than enough money to just relax and enjoy life before he dies, but his driver still drives him to work every day from monday to Friday..
Can you still say this man is greedy? Of course not, he owns the company like I said, if he relaxes at home, he wil still be making his money, but then, he decided to keep working, possibly because, he loves his job as the CEO of the company, and having to relate with his workers every day makes his day fulfilled. So many people are like this.