Speaking of students, I think that most teachers would point out the difference between the full wh pronunciation and the w pronunciation.
The teacher can certainly also point out that many or most native speakers don't make the effort to produce the full wh sound and instead say something very close to or even exactly the same as the w pronunciation.
I should have added this yesterday and avoided dragging this out another day.
Or not added it, and avoided dragging this out another day.
I suspect that most teachers would
not point out out a minority dialect difference.
And it is
not a question of not making the effort, (just as there is no question of Americans not making the effort to pronounce the /
h/ in
herb, or English speakers not making the effort to pronounce the /
r/ in that word). In most parts of the world the
standard pronunciation of
wh is/
w/, (just as the
standard AmE pronunciation of
herb has no /
h/ and the
standard Br E pronunciation of that word has no /
r/).