My DCs dad lives in the middle of nowhere - fields, farms, a few houses around. The DCs are going to visit him over Easter and he is planning on going on several walks. He already goes out at least twice a day - once with his other DC (who has asthma and he has said is high risk) for exercise and once for his own exercise. My DCs are up in arms as this breaks the exercise once a day rule but he says it's fine because he lives in the country. AIBU?