You also have the diaper mods made for Skyrim and Fallout 4. Could use an update to add animation to it, make it so that it's a process to make a Sim incontinent, or even the ability to just make your Sim wear a diaper and if done all the time then there would be a chance of un-potty training them, also making it so that not potty training a toddler would make them diaper dependent, and make a diaper lover trait so then a Sim wouldn't be embarrassed to use their diapers in front of other Sims.
There's also The Sims 4 with the bed wetting and incontinence trait mod, but all that really does is makes it so your Sims don't drop what they're doing and run to the bathroom, and just makes it so that if they do wet themselves, then all that happens is their hygiene drops to nothing while resetting their bladder.
