I am experimenting with the idea or leggings or skinnies (tucked into boots for the fall) under a longer shirt, which is a new style for me.

I've absorbed the message that leggings are NOT PANTS and should therefore not be worn in a butt-exposing way (right?)

So what is the correct length for a tunic? I'm rather petite and short-waisted, but I've tried on several shirt labeled as "tunics" and I can still see about 1-2 inches of bum hanging out in the back below the hem of the shirt. It almost seems like I need a mini-dress rather than a tunic shirt to have my entire derriere covered!

As for the front, should the shirt be going down to the crotch or an inch or more below? Should I be looking for a shirt with a high-low hem?