The people I know who have retired, so many of them lose interest and die; they just become nobodies overnight.
I try to develop others. I get a great deal of joy out of helping people who, over the years, I've spent a lot of time mentoring - and just trying to get them to another level.
All I can say to you, if you look after your health, eat the right stuff, do enough exercise, keep your mind active, you might be around when you're 100 having this conversation with someone.
At the end of the day, the more quality individuals you develop in the community, the better off the community should be.
For me, anyone who is over 80, I generally sit down and have a chat to because he is over 80, and he is going OK.