Journal of Studies on Alcohol and Drugs<\/em><\/u><\/a>, sent undercover researchers into 175 pot shops in Colorado and Washington State. The researchers, aged 18 to 20, would present their underage IDs to the weed store staff. From September 2016 to April 2017, Colorado\u2019s pot employees refused to sell to the underaged \u201ccustomers\u201d 92.6 percent of the time. Washington\u2019s pot employees didn\u2019t fare as well Colorados, but having stopped underage purchases 86.6 percent of the time, that\u2019s still not bad.<\/p>\nRegardless of the few kids who slipped through with adult-use weed in their possession, the sale refusal rate, wrote the researchers, was still significantly higher than refusal rates at the states\u2019 liquor stores. Why such high refusal rates and higher compliance? <\/p>\n