I’d argue weeds way safer than alcohol. And as far as tar is concerned no biggie considering the mass amounts of pollutants we breathe in on a daily basis. Hell the air in most homes is borderline toxic from all the electronics heating up and off gassing oils and plastics during use, Formaldehyde in carpet, solvents in wood flooring, glues in wall paper.

Your house is a death trap, your car is a death trap, your work is a death trap but weed, weed is safe.