He's missing the best time of the day. It is warm and sunny, with almost no breeze. The three year old could run around and burn off excess energy, and the twenty-seven year old could chop down some of the weeds (especially the one known as filaree [ https://en.wikipedia.org/wiki/Erodium_cicutarium Wikipedia ] it has cute pinkish-purplish flowers that become painful, socks-penetrating seed-carriers).