As a sinister southpaw myself, I've never understood why fellow left-handers grip the pen in an unusual curled-round fashion such that their hand rests on what'

As a sinister southpaw myself, I've never understood why fellow left-handers grip the pen in an unusual curled-round fashion such that their hand rests on what's just written. I hold it like a right-handed person would. http://blogs.suntimes.com/ebert/hand-holding-pen.jpg http://blogs.suntimes.com/ebert/hand-holding-pen.jpg But mirror-imaged. Is it because these left-handers are set on the wrong path by right-handed teachers who don't know better?