Evolutionary pressure to survive, for one, since we need heterosexual intercourse to breed. I’m all for freedom in this regard, but come on, heterosexuality is the default because it’s how we evolved and thus what the species needed to survive. Explaining how it’s the default is good as part of the greater understanding in science, but you’re probably not going to have success trying to study it in isolation, you want to look at the “exceptions” and figure out where and how they diverged.
Evolutionary pressure to survive, for one, since we need heterosexual intercourse to breed. I’m all for freedom in this regard, but come on, heterosexuality is the default because it’s how we evolved and thus what the species needed to survive. Explaining how it’s the default is good as part of the greater understanding in science, but you’re probably not going to have success trying to study it in isolation, you want to look at the “exceptions” and figure out where and how they diverged.