People need to be educated that marijuana even 'medical' marijuana is not FDA approved and therefore is not a prescription. Often contains mold, pesticides, fertilizers, unknown amounts of other chemicals and THC potency may be incorrect.
Links
[1] https://www.clickondetroit.com/news/2019/11/23/michigan-forces-dispensaries-to-stop-selling-marijuana-vapes-until-more-testing-can-be-done/