The funny thing is that all of the lefties I know just adapted to the right-side mouse (likely just because that is how it was setup at school/office).

While yes, the BT mouse is going to be the better option, they're pushing the kit-included mouse.

I'm right-handed, but I mouse with my left hand. It works well for me and I've been doing it for decades.

Me too. Due to some issues with right hand I retrained myself to use mouse with my left hand. Now I can use mouse by both hands, and in both button orientations.

Switching is easier than most people imagine, IMHO. I started to feel the beginnings of an RSI and went from right to left for half a year or so, no problems.

You basically just convinced me that I should be training my left hand to use my mouse. In all cases except precision work (eg graphic design) it should be doable.

Side note, but if you actually do graphic design, get a digitizer/gtaphic pen tablet, it is simply "another world" when compared to mouse, nowadays even an el-cheapo one ( i.e. something in the 40-60 US$ range)is good enough for non-professional use.

I am a right hander but use my mouse with my left hand. Why? “Saving my right hand to play tabla (Indian hand drums)”.

In any case, over the years I have become very comfortable using mouse with left hand as a right hander.

Actually this has little to do with being left-handed, it depends on other factors.

I am right handed and use the mouse with the left, so that I have my right hand "free" to use a pen or the (right side) numeric keypad when crunching numbers.

And I do not (as many left-handers do) "invert" the miue buttons, maybe I am strange/an exception.