Low average life expectancy doesn't mean you can't get old. If you survive the first few years of childhood, you have a decent chance of getting reasonably old. The average is being pulled down by high child mortality.
Pretty ironic to use the mace - a common symbol of authority of generals and other leaders - as the "bonk the auths" weapon
Only the console versions had them.
These are still averages. Just because the average person dies in their 30s or 40s, you wouldn't be called a wizard because you lived to 50 or higher. It wasn't as common to get old as it is today but there were definitely people living into their 60s, 70s or even higher.