Yeah. If you made it past 10 or so you'd probably live to at least 50, with 60-70 not being common but also far from rare. All those dying kids and babies really bring down the average.
Let's not get too crazy. There's a 15 year period where young men tend to get injured and young women tend to give birth that acts as a major filter. If you plotted death rates on a graph it would look like a trident -- that's life without antibiotics.
It's certainly true that elderly were not a rare sight, but those elderly who could be found were almost universally hardy of constitution or talented at avoiding danger. Quite literally the end of the bell curve.