This has given me some ideas and some hope for my sims when they turn elderly. The first sim that I had do so, I had to delete the town; due to some glitches. I do remember feeling sad as this hottie, with a great body all of a sudden changed to an old man. In real life we get to see our parents and ourselves slowly age, so it isn't a sudden shock like we do with our sims. One day looking young and the next day like an old man/woman around 80.
My wonder has been, where do I put them, as in bedroom space. I am doing a legacy, my own, not one here, and with a three bedroom house, where will put them when the chosen sim marries and starts their family? I don't know yet how to build a nice big house with lots of bedrooms.
Definitely need to learn how to build a two story house.
Anyhow, this does help me to feel less sad as they get ready to turn elderly, that they won't be sitting around, looking out the window and vegitating (like my dad did).