Your husband makes leather, works leather into products, or both? Having the room for everything that requires doing becomes the problem, as well as the time to do it all. Hmm then there is the strength and stamina issue of manual labor working all hours of the day.
He has tanned hides and worked it into things. He doesn’t need much tools and anything we do need is usually pretty natural. Not sure all he uses though, so I could be ignorant about all he needs.
As for working, the body adapts quickly. He went from being a loafer on the couch for 5 years to busting his ass 12 hours a day. I went form being a city girl that barely broke a sweat to someone that gets up and shovels gardens and cuts wood.
When was the last time you went without electricity, running water, food, and had babies screaming for food...now you know why I prep. These are the things a mother's nightmares are made of.