I had a storyline once where an elderly mother lost her husband to illness and was left alone in their big ol’ house by herself. I decided to have her daughter come visit once a week to help clean up the house and, because she was a chef with a maxed out cooking skill, cook her mom some good meals for the week as this is something that some seniors struggle to do (particularly when cooking for just themselves all of a sudden) in the real world.
Well, mom found it rude that her daughter took out the trash and weeded the garden. And cooked food that her daughter was paying for to put in her fridge. I used the Always Welcome reward to get around it, but it breaks the storytelling aspect to have sims react so weirdly to people who they are related to/close to.