Hey, that's fine, shop where you want to. Just don't go make a big production in front of a 15 year old kid simply because your phone doesn't work in a store he doesn't own.
All that does is set a bad example for the children, and send this world into a further downward spiral. I can see now why kids always say they never want to grow up.
And, as for a greater magnitude... doubtful, there were more people boycotting Disney than there are people who own iPhone 6 models.
Wow that's funny... Are you saying 15 years olds don't have iPhones? I am a parent and the 15 year olds I see around do... lots of them do.
As a teacher of 4th graders ... Plenty of my students did too!