@katieholling From what i gather, Sims 3 and 4 allow disabling aging from the options. Sims 2 required a code to to do that.
But i agree that Sims 1 has a certain charm that can't be found in the later games of the series. Maybe its sandbox nature, maybe the incredible build editor or its modding community...i don't know.
Sims 2 added a lot of gameplay mechanics, while Sims 3 built on them, but Sims 3 also lost some nice mechanics in the process, too. Things like house building became overlysimplified, the shopping distericts could not be customized anymore and so on.
And as much as i'd like to get into Sims 4, its relationship focus just isn't for me. The one thing that i really did not want was me taking care of each relation out there.
My ideal Sims would be a mix between Sims 1-3. The house building from Sims 1, the gameplay mechanics from SIms 2 with the questing from Sims Stories/Sims 3.