The teenage entrepreneur screwing this up I can understand, but the reporter completely screwed the pooch on this one.
A kid makes jewelry called “change rocks”, and Obama has a concert series called “change rocks”.
The kid has no right to do anything with regard to trademark. Quoting the Wiki, “Trademark law is designed to fulfill the public policy objective of consumer protection, by preventing the public from being misled as to the origin or quality of a product or service.”
So if there is no potential consumer confusion, there is no harm, no foul.
Obama can’t sell jewelry, but he could do T-shirts, bumper stickers, etc. My guess is that his concern is about his Google ranking, or an attempt at free publicity.
Don’t care, and neither should Obama. Tough luck, kid.