Let the kid come to terms with their biology, Ie. become an adult, instead of telling them unequivocally that they can indeed be the opposite sex.
Alakanyisa n'wana wa wena lezvaku a vanhu vontlhe va hombe ka yena hi ndlela yo kari niku wutshan'wini ga kuva ni ciluse hi kota ya wutlhari ga van'wani, a nga gondza ka vona.