Aging

I'm solidly in the "Other" category. I switch between mostly only aging the household I am playing and turning it off. I am ultimately aging the whole save but I edited a bunch of townies and then have kept aging off for most of them to create a sense of everyone in the rotation aging together.

By that I mean, when I'm playing one household, I just ignore the other households. I'm just in the perspective of that house and the others are all at the same place in time as the household that I'm playing. The townies are all aging roughly along with them.

As a result, when the households in my rotation start flipping over to a new generation which will be soon, I'll turn aging back on for the townies and let them age along. The same background people won't be around forever but with numerous households, they've been around a while.

If they don't manage to marry into my rotation then I'm happy to assume that they are all just going about their lives themselves. Meh, I'm fine with the idea that time works a little differently in the sims' world. Each household I'm playing is just showing me what is going on in that house at a given moment time. When I change to another, I'm roughly seeing the same moment again. I don't worry about the fact that seasons shift, I just try to make sure that I mix up the time of year when different households are played.

I play with aging on normal lifespan (with adjustments from MCCC), but it’s only for my played households. EA premades and townies don’t age

It depends on which save I am playing.
If I'm not playing a challenge I usually always start with aging off because I don't want to hurry with anything. Whenever my Sims have their first baby I put the aging on, either long or normal, depends on how I feel at the moment.

Aging off almost always. I've turned it on for a few challenges I never completed :D .

A bit of yes and no in there.

Sometimes i set immortality to some sims just so the world doesn't get so alien the more new generations of sims that exist after the original lot are gone, it sort of loses a magical sprk about it after all the original pre-mades or mine go out the picture.

The rest i leave with a long lifespan, that all assumes they don't get hysterical and die of laughter at the humor and hijinks festival of course. :D

I play with the long life span and nobody ages up until it's their birthday on the calendar.

If I am doing a challenge or something, then I follow the rules of the challenge. I used to play with long lifespan, but now I find myself enjoying things more if I play with aging off and age sims up when I want during a natural story progression. It makes it easier to do the things I want to do. However, every now and then I'll do normal life span for an added challenge.

In most of my save files I play with Normal Lifespan because I find it the most convenient for my type of stories and gameplay.

I use an altered version of normal lifespan thanks to MCCC. Occasionally I play with aging off for a while, for story purposes. I will probably do that more now I have DU.

I live playing realistically, which means allowing aging... but I also don't have the patience to manually age up every single Sim in my game individually, so playing with aging off is a no go for me. I like to fill my worlds with families of my own, but also like to focus on only one household at a time, so that would make things very difficult and time consuming for me.

As for the length of the spans, the long lifespan is the only one that's playable for me... the short lifespan is extremely short. Normal lifespan isn't even much longer than the short one (which is disappointing), so long is the one I go with.