Nope, I think you got it. I thought as much and I realize not everything is acted out, but I never see a sim autonomously fix anything so I was wondering. I was talking about in the career aspect of SP as well as I've allowed sims in Retuner to fix things autonomously. I didn't know for sure if sims will ever fix anything autonomously? I found this odd because I have handy sims and sims with a 10 handy skill, ( I prefer sims just fix things themselves, it's quicker, and my neat sims will just keep mopping the endless puddles otherwise...LOL) they just walk through the room annoyed by the broken thing but never try to fix it on their own.
Also, I do click the pictures with the stories sometimes and have caught sims still doing that thing (especially since I put the stories timing back to normal) and I had just realized I'd never seen one fixing anything, but certainly training and the other stuff, even riding.