Neither "boy" or "girl" just "friend"?

How do you feel about the preschool that doesn't acknowledge children by "he" or "she" but as "friend" because they don't want to categorize children into thinking that boys are strong and rough and might get dirty and girls are suppose to be "girlie" or act like ladies? I really don't support it to much because we want our girls to grow up to be ladies because they are girls and we want our boys to become strong men because the are boys and that's is what it is suppose to be like. They said that they should decide what they want to "be" but it doesn't make sense because they are what they are born. (except for the few that are "born" in the wrong bodies and I say this with respect) but what do you think?