This is happening on console too. It's annoying enough with one sim but it's worse with a family as they all huddle round together or they walk across the house and sit or stand near a pet or family member. They also go and sit in the pool, involving an outfit change too obviously. I always have stools at the kitchen counter and usually a dining table close or in the same room.
Grabbing leftovers, they always stand at the fridge door.
They will not eat at the outdoor dining table when food has been cooked on the grill and all trot indoors to the sofa or sometimes even the computer desk. Can't really have a dinner party or BBQ as guests don't sit at the desired place together.
At breakfast when you need them to move quicker, I usually assign stools or chairs to them but typically, that's the one time they do choose a seat themselves... resulting in musical chairs and late departure to work or school.
Sometimes it helps to set the table, but then you have to reset each individual place setting every single time.
Should be a simple thing...sit at the nearest stool or chair.
