All societies we know, they'vebeen around for a long time, have evolved the same kind of restrictions and ntribalism. Hire's no reason to restrict yourself on food and sex - it's obviously just a personal choice. If there are certain arbitrary things that i don't eat, if there arecertain arbitrary sounding restrictions on on sex, and i'm able to abide by them while i i develop the ability to defer pleasure then this may have a long-term advent advantages. Hyk says man consists of complex practices or cultural heritage which make him better than other people because he could put it into place more easily.