People in the US have been conditioned by their very profitable food industry to consume bad food. When you consume something like that your tastes change so much you reject most of the good stuff.  It is true that what they sell in bottles in any country now (due to the economic imperialism) with aspartame and 50 other small printed ingredients, is probably garbage but the real Boza (which spoils in 1-2 days) is one of the best drinks on the planet.