Did you mean HAZARDOUS chemicals? Like Chlorine, Iodine, Alcohol, maltose, dextrose, isocohumulol, phosphoric acid, calcium carbonate, di-hydrogenated oxygen, acetic acid? Those kinds of chemicals?
Or do you mean that rather than educate yourself about the safety of some substance, you will buy new rather than re-use, and fill the landfills up unneccessarily? I guess some people have more money than time, others have more time than money. We all draw the line at the point of our own choosing. I doubt if any viewer on this list uses only new equipment- pickle buckets for grain transport or primary, used carboys (could have had ANYTHING in them), kitchen pots and pans (see above list, all could be found in your kitchen), re-used bottles. But scaring folks away from CHEMICALS is paranoia.