In fairness, while retirement does have some advantages, being old is not all it's cracked up to be. Arthritis, enlarged prostate (ask King Charles, or me for that matter), increased travel insurance costs (over 70 usually, so this year for me), and hearing about all the people you grew up with on the TV dying at an age that is just not as far away from your own as you would like.
On the up side, if you have a pension you can live on, you have the freedom to what you like, when you like. Acquiring the attitude that goes: "f**k it, I want it, I want to do it, so I'm damn well going to"; that last one is a good one, probably my favourite.
I retired early, aged 62, although had to wait for my state pension, which didn't arrive until I was 66 years and 10 months (a strange figure really), so lived on savings and a small Air Force pension; It was the best thing I've done in years, I have so many things to do, I wonder how I managed to get anything done at all while I was still working.