I understand you based your answer on OP's comment, but you should not assume everyone has a charger that is compatible with the newer iPhones. And the prices a

I understand you based your answer on OP's comment, but you should not assume everyone has a charger that is compatible with the newer iPhones. And the prices are totally different as well. There is a regulation in Brazil that determines newly purchased products should come with any components essential to the use of such (expensive, i.e., $1450+ in Brazil) products. In the case of iPhone, this means coming with a charger. Just like you, Apple assumed everyone in Brazil would have an Apple compliant charger sitting around, but the regulation exists exactly to avoid it. I can see them using to constraint their warranty, so when a problem happens to the phone they would have an excuse not to fix it: "oh, we see here you haven't been using a compliant charger. Warranty voided."