What planet is this 7-11 on? Every one I have ever been to features coffee in giant urns which may or may not have been cleaned since the Obama Administration (it's hard to tell from the taste) and which may or may not dispense actual HOT coffee which may or may not be actual coffee and not just coffee-flavored water. Every one I have ever been to features "soda fountains" which dispense a little soda and a lot of water. Every one has as it's only real selling point Relatively Cheap and Reasonably Fast. Notice that you did not read the word "Quality" anywhere in that selling point.
Nothing about a visit to 7-11 has ever made me want to dance. This would make slightly more sense if one of these kids was seen purchasing a scratch-off ticket (I forgot; this is another selling point of 7-11s: an almost infinite variety of perforated cardboard with pretty pictures on it you can purchase for anywhere from $4 to $20 each) and actually winning more money than the ticket cost. But there's no hint of this anywhere. They are just dancing around a 7-11 parking lot* because they bought lukewarm, watered-down coffee and watery soda? Seriously?
*which is devoid of cars. In the middle of the day. Another thing I don't associate with visiting any 7-11 I've ever seen.