Nowadays, the gender of a boy or girl is made clear from an early age by the clothes they wear. Thankfully now, more and more attention is paid to transgender people; people who were not born in the right body but have had to grow up with the values of the gender with which they were born or people who feel more gender fluid. They do not feel like a man or a woman but like both or by turns or neither the one or the other.
The most important thing is, of course, that we should see the individual at all times. Man, woman, boy or girl, it should not make any difference.