This is a repost of this issue as it's still very much a thing: [ARCHIVED] Routing/Sit down issue on several interactions | EA Forums - 11234985
Game Version: 1.116.223.
Issues: If you give a Sim an order to do something, they will walk over to a pool or a chair, sit down and then get up again to do order you gave them to do.
The same is happening with infants when you give your Sim an order to do something with them. They will put the infant down, pick it up again and then do what they were supposed to do. Thread for this is here: Sim keeps putting infant down before putting them in crib et al. | EA Forums - 4982816
Archived thread had around 562 me toos
Known interactions: