I'm a southern gal, & table manners were drummed into me for as long as I can remember. What my own mother didn't teach me, I learned from my best friend's mother who was also like a mother to me.
And I'm trying diligently to instruct our own kids. Table manners are just... nice & show class, &, IMO, speak volumes about an individual.
Anyway, I know about the bread & butter thing. Plus, I hardly ever (practically never) put butter on my bread - too many extra calories!
However, my own "what am I supposed to do moment" is this...
I'm sitting here & trying to remember what I actually do w/ a roll or piece of bread - as in, do I break off a piece & then eat it or do I just bite into the roll. I think I do a combination of both actually - depending on the bread & the restaurant.
We frequent one Italian restaurant where the rolls have garlic & butter/oil already on them - so, if I were to break a piece off w/ my fingers & then eat the piece I broke off, my fingers are actually getting messier than if I just bite into the bread - but then, of course, my roll lies on the plate w/ a bite out of it. Aack!!!
However, at another restaurant, I will break off a bite-sized piece of bread & then eat the piece - because the bread's not messy/greasy.
One of my restaurant pet peeves - when the server takes away our bread plates when she brings the entrees.
(Confession: Unless I'm at a fine dining establishment, I don't cut my sandwiches or hamburgers or pizza slices before biting into them. However, if I'm at a nice restaurant, I'm not ordering a sandwich, hamburger, or pizza anyway.)