Are we greedy? Oh, yes I agree with you as we are! The more we achieve what we want, the more we aim for more! I guess that our human nature 😬. Then came to a point we will be lacking appreciation of everything we have as 🥹.
Your friend is kinda lucky, now I am thinking that I could also slow down at 50? I think the answer is NO, unless I will be winning in a lottery.
Even the people who just want to relax, will keep searching for more relaxation!