The Preteen Mod I want it implemented in game

Oh, I didn't realize there was a whole thread about this idea.

Yeah, optimally I wish the game would have launched with a little better distinction with the different Life Stages. I think it was said that the Elders in the Sims 2 actually looked and felt distinct (Sims 2 is the only one I've never played, and my memories of 1 and 3 are hazy). The fact that Teen, Young Adult, Adult, and Elder are basically identical is annoying, and it also makes the jump from Child to Teen extremely jarring.

At this point in the Sims 4's life, I'd also just rather see a Sims 5 come out that does better with Life Stages from the beginning.

However, as long as the Sims 4 continues to get updates and completely redesigning everyone's existing characters obviously wouldn't be a good idea, adding a new Life Stage between Child and Teen is the obvious option to me.