It’s funny that kids these days still play punk music. I keep waiting for the millennials to define themselves musically the way each generation of young Americans did in the 20th century. But they have yet to do so. Until that unlikely day comes when they step up to the cultural plate, Mechanicsville’s Insubordination is as good as anybody in the world of punker rehash. Don’t get me wrong: The trio writes catchy, energetic songs in the vein of NoFX and the Dead Milkmen, and I have no doubt that it’s fun to see and be a part of live. I’m just sad that it sounds like granddad’s punk band. Insubordination plays Saturday, Dec. 28, at the Canal Club with Never Wrong, the Pity Whores, Union Boys, Last Day and First Class Liar. Doors open at 7 p.m. Admission is $5 in advance and $10 the day of. thecanalclub.com.