No, You Really Can't Be Too Cautious
...because virtually every product used for painting and lubrication (including seemingly innocuous things like WD-40) contain chemicals that can fool you because the damage isn't immediately evident.
I owned and operated an auto collision/paint shop for 23 years but got out of it entirely in 1995. All that time, I was pretty loose about using protection from all the various paints and chemicals used. Now, it looks likely that those years have come back to haunt me.
I was just recently diagnosed with leukocytosis (a symptom, not an ailment), but I won't know exactly what flavor of blood disease I have until the tests are back from the bone marrow biopsy (like, aaah, ouch).
In my case and with my history, however, the most obvious and likely cause comes down to benzene exposure which is one of the chemicals singled out that can lead to blood disease over time.
So while I can't turn back the clock for myself, I can offer a clear warning today to those of you who think you can just wash your hands after using the various nasty stuff we do; it don't work
As far as banning things that might be harmful; nonsense. All these products have a purpose, and all that is needed is labeling that outlines the risks and how to mitigate them. Then, as adults, we make our choices and live with them.