Growing up in an Amish home we weren't always aware that we were doing or using some thing that the rest of the American public wouldn't have considered doing for health reasons.
The oil stove in the kitchen (Never mind the fact that it posed its own health risks and problems due to the noxious fumes) that we used during the summer months was always a concern that its oven might make the wall behind it too hot.
To prevent a possible fire we kept a sheet of asbestos between it and the wall. We didn't have any idea asbestos was bad for you, and lugged that grayish sheet from home to home until 2004 when my parents moved to a community that allowed gas stoves and they got rid of both the oil stove and the sheet of asbestos.
Little girl babies would often have bobbies before their hair was long enough to braid. In order to help the bobbies lay neatly a piece of lead would be pounded flat and little piece would be broken off to be used to have the hair wrapped tightly around it, the ends would then be bent to keep the hair in place.
We had no idea lead was a bad thing.
When Rosebud came along my Mom gave me her remaining scraps of lead since it was very hard to find lead by that time. However, Rosebud's hair grew very slowly, and we had moved to a community that didn't use bobbies for their little girls so I never used it. Something I have been thankful for!
Interested in seeing bobbies? I found a picture here.