The study is about "perceived risk of marijuana" aka how kids think about the detrimental effects of it. This study is NOT about the likelihood of use

Unsurprisingly, living across an invisible state line doesnt really matter. Regardless of location, most American kids (and kids around the world) are getting the same info and have the same idea about the risks of marijuana now. It was like this even before legalizing weed started catching on. Whether a states lawmakers care or can get over decades of anti-weed propaganda is a different story though