It's stated in the passage that.... babies are born with certain tendencies depending on their sexes
the child's sex is taken into consideration when it is presented with a toy
there must be certain games which both boys and girls can play together
it's cruel to call a child a "torn-boy" or a "sissy" when it doesn't conform to the norms of society
boisterous or aggressive games are considered suitable for neither gender
According to the writer, the tendency that dominates society is that.... children should be allowed to play with whatever toy they like
the discrimination against toys regarded as suitable for boys or girls only increases the child's interest in them
the child should be discouraged from playing with toys special to the other sex, without the parents being too repressive
the child should be directed from an early age to behave in accordance with its own sex
such activities as reading and playing the piano should be common to both genders
We can conclude from the passage that...... psychologists are attempting to eliminate sex discrimination in society
girls aren't given toy cars and train sets as presents, but anyway, they instinctively haven't much interest in them
the child's choice in games and toys is directed according to the norms of society rather than to his interests
the child only grows interested in the toys belonging to the opposite sex when there is a member of that sex in his or her vicinity
if the child's attention weren't drawn to such discrimination through prohibitions, he would instinctively behave suitably for his own gender