how come a 15 yr old boy, can walk into a store, and buy a lawnmower, and not be asked for proof of age? the mower, if misused, can kill or cripple him, or an innocent bystander. how come, a 15 yr old boy, can walk into a store, and buy a bottle of pesticide concentrate, without being asked for proof of age? if misused, the product could kill or cripple him, do the same to others around him, and poison drinking water, and contaminate the soil, for the next 500 years. how come, this same 15 yr old boy, CANNOT buy a 6 pack of beer, that will, most likely, do no harm to him. and, at worst, will only make him vomit. why? can anyone tell me?