Because in the U.S it's rare to see a drink under 100mg in dosage. Anyone new or wanting to just relax dont want to precisely measure sips with the risk of over doing it and ruining your night which happens all the time in the U.S. STZs approach is going to be better than what we've seen in the U.S so far. Where a complete noob to marijuana can have one full drink and feel the slightest effects without any risk of ruining a night. And for the heavy stoners that need 1000mg to get high, the problem isn't your selection, it's probably you, cut back a bit why do you need so much to get stoned.....