Aging MIL has been living with us for the past 2 months, ever since second stroke affected her vision. She was at first content for me to shop and cook for her, but has recently begun asserting her independence more. She kept insisting a week ago that she needed groceries (even though the list was mostly things we already have in the house) and then in the store started arguing about wanting to buy various junk food items (she has diabetes and high blood pressure). So my question is, should I just let her have the junk? I don't want to take away her independence, but if it were up to me I would definitely not be feeding her donuts! What's the best way to compromise on food and other personal choices?