That's how it used to be ... Surprised we all survived to adulthood.
But back then parents had more kids ... 3 to 4 was typical. If I had 3 to 4 kids I'd quit sweating the little stuff too. Heck Baby ZL was eating dirt from the yard yesterday AND today. That would never have happened with the first ZL when she was a baby. I pretty much tell the baby she needs to be careful and watch out for herself. I can't be in 2 places at once. So far so good.
If people had more kids ... Parenting will revert back to the good old days.