How Did We Survive?

There is a discussion over on MMW about breastfeeding. It got me thinking. How did we all turn out so well?

When my mom was raising babys:

You put babys to sleep on their stomachs.
Tuna, as well as any other kind of fish, was fine to eat during pregnancy.
Kids were potty trained right around 2 years old.
Carseats only had a **gasp** three-point harness.
Sitting too close to the TV would ruin your eyesight.

When my grandma was raising babys:

You put babys to sleep on their backs.
You didn't coddle a baby boy, it would make them weak.
Butter was the proper remedy for a burn.
Carseats were optional.
Formula was superior to breastmilk.
There weren't any restrictions on pregnancy diet.

I mean seriously. How did we all turn out so normal? What have you heard from your mother/grandmother that make you question your own existence? Or their ability to successfully care for your kids?