Why would people engage in arguments where nothing serious is at stake (other than posturing and social grooming) and wouldn’t it be better for them do something useful instead?
Why would people watch movies and wouldn’t it be better for them do something useful instead?
Why would people read novels and wouldn’t it be better for them do something useful instead?
Why would people watch movies and wouldn’t it be better for them do something useful instead?
Why would people read novels and wouldn’t it be better for them do something useful instead?
The answer to both questions is “pleasure”.
Do want to say that people argue for the pleasure of arguing?
Yes, they often do.