As has been pointed out numerous times ... it is a matter of safety. Trash bags do not "breathe" ... so anyone wearing one as clothing risks dehydration, heat stroke, etc. Possibly even death due to "overheating". Trash bags are also highly flammable ... so anyone wearing one as clothing risks injury/death around open flames.
But tell you what ... get on YouTube and do a "challenge" with it. Some people are stupid enough to eat laundry pods, so ...........