Question for Vets...

To my fellow vets,
Just a quick opinion from ya'll. Got a kid in my shop who just got a tattoo on his upper arm of an american flag (which is cool). The part that is bugging me is under the flag is a full on set of sergeant stripes. He has never served nor intends to. He says he added them because they looked cool.

Am I off base by being bothered by this?