I'm of the "wear what you want" category.

For me that's t-shirts (tucked and untucked), polo shirts untucked, non-tailed collared shirts untucked, and tailed collard shirts tucked. There is an exception to the tucked tailed collared shirts. When I am carrying a concealed weapon, I always leave the tails untucked so as to cover the weapon.

My Utilikilt's been worn with everything from no shirt to a leather vest. If it feels good, and you can take some good natured ribbing in some cases, go for it.