“…Among those aged 18 to 20 years, we found that state T21 policies were protective against cigarette smoking among White young adults but not among those of racial or ethnic minority groups. These findings are consistent with previous research showing weaker age verification enforcements among minority populations ( 2 , 16 , 21 ). Several factors may account for these differences in tobacco access and use, including differences in accessibility to small retail stores where age verification is less likely to be enforced, such as liquor stores, gas stations, corner stores, small kiosks, and convenience stores ( 7 , 22 , 23 ).…”