^ yea ur right...it really does depend.
My cousin went to Aitchison College in Lahore. And from what I hear that's a really good school in pakistan. He came here for uni and it was so funny I literally had to show him how to pronounce the V and the W cuz he wanted to know the difference lol I told him to pay attention to my mouth movement and see how when i say V my teeth touch my lips and when i say "w" (like what..why..when) my teeth dont touch my lips.... And he's been getting it right since then lol