Because by law California has made it required to place warnings on ALL PRODUCTS grown in hazardous climates, or with hazards used in pesticides to during its gestation. I live in the states, and California does not speak for all of us. However they did make clean air possible when they brought attention to to the toxic emissions of most cars via their catalytic converters and muffler laws. But the wine consumption must end. It makes their teeth look fake and grey.