It is a very tricky subject. Since the sims is played by such a diverse crowd and is very inclusive in general I can understand if some people with disabilities or people that have close friends and relatives with disabilities want them in game, so they feel represented.
Personally I don't want any in my game like I don't want real life diseases (that some people have asked for too). It's a videogame, a very quirky and random one for that matter. Firstly it would feel like a caricature of whatever disability they add and secondly I don't play the game to see serious real life issues.
But that doesn't mean I am against the possibility of them adding the "feature" if done appropriately. What it means is that I would like it to be OPTIONAL. I always say it but I think this is key to everything the team adds. Options is the way to go. If I only had the possibility to give The Sims team feedback once, I would for sure tell them: "please, give us options and toggles on whatever you add so we can make our games more personal and to our taste".
