There are many cases in the past of something that was assumed to be safe, that turned out not to be.
It is really impossible to say what the consequences of prolonged exposure will be in a large population except by actual experience.
If it turns out that in 20 years there are many middle-aged women with poor memory and short attention spans, people will start to wonder again.
"If it turns out that in 20 years there are many middle-aged women with poor memory and short attention spans, people will start to wonder again."
Not if they're liberals.
Just 'status quo'.