To me, a tattoo is a sick form of virtue signaling.
“Look at me! I’ve got a tattoo!”
“Look at me! I’ve got a tattoo!”
That's why tattooed men so often wear wife-beater shirts or, of course, no shirt at all.
But they wear baseball caps (most frequently backwards) to hide their bald heads or, of course, shave so there's no hair at all.
Underlying cause of this behavior? No brain at all.