The play instinct is common to girls and boys alike; and endures in some
measure throughout life. As other young animals express their abounding
energies in capricious activities similar to those followed in the
business of living, so small children gambol, physically, like lambs and
kids; and as the young of higher kinds of animals imitate in their play
the more complex activities of their elders, so do children imitate
whatever activities they see about them. In this field of playing there
is no sex.

Similarly in adult life healthy and happy persons, men and women,
naturally express surplus energy in various forms of sport. We have
here one of the most distinctively human manifestations. The great
accumulation of social energy, and the necessary limitations of one kind
of work, leave a human being tired of one form of action, yet still
uneasy for lack of full expression; and this social need has been met by
our great safety valve of games and sports.

In a society of either sex, or in a society without sex, there would
still be both pleasure and use in games; they are vitally essential to
human life. In a society of two sexes, wherein one has dictated all the
terms of life, and the other has been confined to an extremely limited
fraction of human living, we may look to see this great field of
enjoyment as disproportionately divided.

It is not only that we have reduced the play impulse in women by
restricting them to one set of occupations, and overtaxing their
energies with mother-work and housework combined; and not only that by
our androcentric conventions we further restrict their amusements; but
we begin in infancy, and forcibly differentiate their methods of play