Double-ditto YT, except for one thing...
I too always learned on "standard" stuff, and have adapted quite well. EXCEPT for bolt-actions. The left handed bolt action is the only weapon that I can operate better than a right handed version. My wife, also left handed, never knew there was a "lefty" bolt action until I bought mine. She's hunted with a Remington 700 30-06 since she was 14 (downloaded handloads of course). When she cycles the bolt, she has to put the barrel on something (lap, knee, floor, limb) to support the weight while she cycles the bolt.
When she first handled mine, the light bulb went off in her head... "Hey! I can work this one without having to prop the barrel!"
Other than that, left handed features are mostly wasted on me.