Right or left -- probably too difficult to implement, but it'd be cool
This is a minor thing (that would require doubling up on animations, so it's probably way too much work to ever implement), but I do wish Sims could be right or left handed.
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You can also tell by just watching your Sims use their hands. My sim had triplets (2 boys and girl) and when they were all doing their homework I noticed the girl was writing with a different hand than her brothers. She's a lefty
