Can you imagine what a wonderful safe world we would live in if humans simply followed 10 rules......the 10 commandments.
Sexual disease would be almost non-existent if people understood that they should be married before copulating with somebody.
It’s only because of the spill over from bi-sexuals not staying in their lane do heterosexuals face large risks. The risk would still be there for illicit sex, but it would be 99% less.