What is one thing in the Sims that you wish was a real thing?

Cowplants. They are adorable. Though I'd likely kill it in a week.

Publishers accepting any manuscript.
Alternately: Self-publishing a novel guarantees steady sales (at least for some time).

Probably everything already mentioned and teleporting :wink:

The ability to apply for any career without a college degree and not getting rejected. Who wouldn't want to skip med school and become a doctor when it's that easy.

Motherload and the fact that there's no mental illness...

Motherlode. It'd be nice to suddenly have all the money I need to pay off all my family's bills, and any future ones they may ever have :D

I wish I could Motherlode my bank account and lose weight as if I was in CAS!!

Motherlode. Though aging off would be great too.

In addition to all the above (except for cowplants, lol) I think the observant reward trait, as well as all the weather-related ones (who wouldn't want to be immune to heat, cold, ice, etc :smile: )

All the above answers plus learning a skill and becoming an expert in it with little to no guidance.