Some children like sport; others just dont (especiallygirls)
P.E teachers tend to be pushy by nature. But it is daft to push the wrong children. Can be even cruel
You got that in the army; but most instructors were sensible
Its a bit like like pushy american stage parents. (They seem a little off beam)
I suppose some needs a bit of a gift to enjoy sport or stage.
Though you can have health execise. My games teacher showed her underwear. The boys did not complain