Ours do because we've always had a spare room for guests. It does cause a fair amount of stress, though. It got me thinking that I might rather stay in a hotel when I am a grandparent. I think our parents would be insulted if we asked them to stay in a hotel (and we would never ask). But I wouldn't be insulted if my kids wanted me in a hotel. I think I would totally understand that this could be the less stressful option if you can afford it.