The pharmaceutical industry loves us.
We are wise. It comes with age automatically.
We are out of the rat-race. We don’t have to be nice to our bosses any more.
We can enjoy our aches and pains because they prove we are still alive.
We can turn off our hearing aids when we don’t want to listen to bores.
We can choose which events in the past to forget.
Strangers are (usually) nice to us.
No need to lie about our age any more. We can boast about it.
We can look forward to our doctors reversing the aging process.
I am sorry I cannot think of a tenth reason. Perhaps you can.