I would assume that alcohol consumption makes people act less rationally, like having sexual intercourse when it would be better not to, leading to unplanned pr

I would assume that alcohol consumption makes people act less rationally, like having sexual intercourse when it would be better not to, leading to unplanned pregnancies. Evolution tends to favor behaviours which lead to more offspring. I am not advocating this in any way of course, just pointing out why getting drunk might have evolutionary benefits besides not starving to death.