I'm a novice at philosophical discussion let alone philosophy; so, I apologize, up front, if I do things wrong. I have just begun to read The Republic (translation by A.D. Lindsay). One delightful discussion about old age between Socrates and Cephalus starting in Book 1, par. 329 inspired me to pose these questions:
Do you sense, as you grow older, a growing liberation from the drives and passions of your youth?
For those who are still young, do you feel you are being controlled by your passions?
when i was young i thought getting old was worth than death, and it meant having to give up so many things until ultimately death would be welcome.
instead i rather find, as in your question, that indeed old age is a liberator moreso than a limitation. regardless of the attitude in society towards it, old age has not only a freedom because of the weaker stimulus of bodily passions but many more, as in the case of these that i notice:
-less peer pressure
-less intensity in any anxiety over life's daily problems
-less intolerance of any frustrations or adversities and inconveniences
furthermore, the loss in physical ability is overridden by the increase of enjoyment in lesser accomplishments. the loss of mental capacity is overridden by the depth of insight and experience. and the wholehearted commitment to the passions of youth are regenerated with the ability to feel powerful emotions yet set them aside in order to think clearly and act efficiently.
i could go on much further but i think that answers your question.