> Stolen valor is a crime.
A civilian wearing an army T-shirt is not “stolen valor” in the sense that stolen valor is a crime, so this is, at best, equivocation.
While I believe (but I don’t feel like checking the UCMJ) there is a much more extensive crime (or set of crimes) relating to stolen valor within the military, the crime of stolen valor that it is possible for a civilian to commit consists of, and (outside of selling military decorations) only of, fraudulently claiming one of narrow set of awards with the intent to obtain money, property, or other tangible benefit, specifically:
a Congressional Medal of Honor,
a distinguished-service cross,
a Navy cross,
an Air Force cross,
a silver star,
a Purple Heart,
a Combat Infantryman’s Badge,
a Combat Action Badge,
a Combat Medical Badge,
a Combat Action Ribbon,
a Combat Action Medal, or
any replacement or duplicate medal for such medal as authorized by law. 18 USC Sec. 704.