I know this is probably a long shot, but I'm just curious... I know The Sims 2 offers a way to age up NPC Sims your Sim personally knows once they age up, but that, unfortunately, doesn't apply to Sims who are actually accessible from the neighborhood. It's only for legitimate NPCs...
So, is there a mod/cheat that allows us to age up Sims from other physical households?
Favorite Packs
Sims 1: Hot Date
Sims 2: Seasons
Sims 2: Happy Holiday Stuff
Sims 3: Seasons
Sims 3: 70's, 80's, & 90's Stuff
Sims 4: Seasons
Sims 4: Paranormal Stuff
Sims 4: Strangerville Game Pack
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open cheat box
boolprop testingcheats true
shift click the npc and select add to household
shift click npc once in household and select age up (you might need to select tombstone of life and death(which will spawn a tombstone which you'll need to shift click to get the selections) to find age up)
when done shift click the npc sim and select remove from household
I don't know if it's possible to do without the sim in the household but that's how i remember doing it.
I believe you have to do the boolprop cheat in the neighborhood window before entering the household. And the cheat is "boolprop testingcheatsenabled true" without quotation marks. You shift click on whoever you want to age up and click "make selectable" and once done aging them up you can "make unselectable". (Or you can do the Tombstone of L&D like the above post) To age them you can click "set to birthday" and have them go to a birthday cake and age up or you can use the cheat "agesimscheat on" again without quotes and click the sim and choose whatever age you want, up or down I believe.
Just DO NOT add the grim reaper to your game using this. It can corrupt your game.
simlogical.com/sl/Sims2Pages/Sims2_Aging.htm
SnootySims did list all the cheats except those directly related to objects. But this link may help you in the future, if the link doesn't work click it a few times since it's being moved to the wayback machine (I hope) and may have to click a few times to get it to show up.
https://web.archive.org/web/20080125215301/http://www.snootysims.com/cheatsindex.php?id=cheats