Scope is our self-interest expanded to include others, such as family, friends, tribe, and nation. Unfortunately, this inclusion also leads to exclusion, which is the human trait of limiting their tribe or culture. Us and them. All of the usual ways to separate humans from humans come from this major paradigm. Gender, race, ethnicity, language, class, and nationality are just some of the ways in which we set boundaries.
Sexuality is closely related to family relationships and morality, but it is separate.
Humans have the wonderful ability to fuck at will. We are not constrained by natural cycles like other animals, but we are not taking advantage of this boon to our species. Instead, we think of sex as something which must be concealed like defecation and urination. Sexuality includes the virtuous, normal, and abhorrent morality of sexual practices, as well as the responsibilities of procreation. Education is the secondary agent of the enculturation process.