Before water could be reliably sterilised beer was the only thing people could drink safely. So it would have been the only thing a lot of people drank for their whole lives after they stopped breastfeeding which I think will have contributed quite strongly to it’s popularity.

2 out of 4 ain’t bad, but there’s still a little time left for me.

Maybe my balls and your balls could hang out

It was the style at the time.