82 seems like a good innings. I wouldn't feel short changed by that. But then I saw a parent die of cancer at 55, so it's all about perspective I guess. If they had lived to 82, I'd have had 2 of my life times with them.
It's very sobering, isn't it? I recently realised that, in under two weeks' time, I will have lived more of my life without my parents living than I did with them alive - and I'm 46.
It's definitely pointless only having a number/age, though, and no other info. It's like asking if people would like to live in Paris, without ever specifying whether they would reside in the presidential suite in a swanky luxury hotel the whole time or huddled in a shop doorway in a rough suburb where all the drug addicts hang out.
I always think when you read of scientists claiming that we could all be living to 150 before too long; it sounds great if your body were to 'lock in' at 25 and then you have another 125 years of that, with your mind staying sharp and healthy and only gathering more wisdom and wonderful experiences over the years. However, if you look at your average 100yo's quality of life and then imagine deteriorating from that for another 5 decades, the shine rather wears off.
My DGM died a few years ago at almost 98, but she had a life full of sorrow, abuse and severe mental illness, not to mention plenty of physical problems on top of that. But for the odd moment here and there, it was most clearly not a happy life at all. If I could theoretically choose to have had my life (which has hardly been Arcadia) and then be gone by 49, in three years' time; or otherwise have had her life of double that time, I would jump at the former option in a heartbeat.