Not really? Historical life expectancies were low because it was so common to die in infancy and childhood (thus dragging down the "average").
For people who made it to 20, it was common to live past 60.
reply
I'm guessing they are ignorant of historical facts and are just repeating what they heard from somebody else.
That doesn’t sound any better.
It doesn't, because "it was so common to", as OP stated, is not the same thing as "you were supposed to". There's no reason it should be corrected, it's accurate.
Not really? Historical life expectancies were low because it was so common to die in infancy and childhood (thus dragging down the "average").
For people who made it to 20, it was common to live past 60.