It's a wonder any of my generation are still alive and lucid.
The first time I went to the dentist, circa 1954, the dentist polished a penny, coated it with nice shiny mercury and handed it to me.
I put it in my pocket and carried it around for days.
My leg swelled up under my pocket and I got some cream to apply.
Can you imagine what would happen if that happened today?
What with lead paint, leaded gasoline, nitrites, oleo margarine, lard, sugar, cigarette smoke-first and second hand, suntans, arsenic laced pest poisons, DDT and on and on, it's a wonder the human race is still here.
Oh, and artificial coloring
My first dentist visit was 10-12 years later.....but I got a lollipop leaving :)