My ds will be 20 months old (what??!!) on the 30th and the past week he's been fighting hi high chair at dinner time. He eats in it fine for breakfast and lunch when I'm not around but at dinner he won't get in it, wants to sit on my lap, and wants to walk around with his food and play in between bites. I've told him his plate stays on the table for eating and I eat at the table with him so I don't know where this is coming from. He throws a full on tantrum about it. I don't let him walk around but he ends up not really eating dinner because of it. Ideas? Is this a battle I should chose to fight or a phase that will pass? I'm so confused on this one.