Raising children can be tough, but 60 hours of housework per week? In my house there's maybe 1-2 hours of cooking for dinner everyday and maybe 5 hours of cleanup on Saturday morning (this includes cleaning bathrooms, sweeping, mopping, vacuuming, etc.). Laundry takes 10 minutes to separate, then the machines pretty much do the rest of the job. Laundry gets done once a week for a family of four here for another 2-3 hours.
Maxing all those values, that's what, 22 hours? Where are the other 38 coming from?
ETA: I'm not being facetious here, I genuinely want to know what those hours are being spent on. When you have very young children, sure, but by 6/7 kids in my family are expected to start being self-sufficient (in the ways they can, such as picking up their toys, brushing their own teeth). By the time you hit 10, you've been doing some serious work around the house. I also got my first job at 14...