Oh so when you’re 18 you extract as much pleasure/utility/etc from a month of life as you do from a year at 50? Maybe my late teens were lame because those times were not that awesome lol. Nor any other time I can think of. It’s all mostly been the same, except, say, when I was 4-8, when time just dragged on and on so slowly everything felt like eternity all the time. Then that ended and everything has been more or less the same from a psycho-emotional perspective.
Health-wise yeah it’s great to be young :)