Bonding Time
Starting children early on household chores is a must. Otherwise, they will grow up to be Karens. There is something about taking responsibility for chores that make us productive members of society. In this case, the dad decides their bonding time should be spent mowing the lawn.
Yes, the toddler is not really cutting any grass, but that muscle memory of doing it is something helpful in the long run. This can even be their past time in the future. The dad, of course, needed to wear some pants for his sake.