Originally Posted by apropos
If people ekeing out a living likely barely above the poverty line in India can pre-wash and (gasp) iron my patterned poplins and voiles properly, then it's a non-issue. Unless of course some first world tailor wants to play it up so that he can justify charging you $500 a shirt.
It's a oh my latte is too hot type when its freshly made
problem - i.e. a non-problem. The amount of focus you're giving it, heck the fact that you're even focusing on it, is IMO pretty ridiculous.
Why do you want to talk about India, where labor is cheap and they probably do that out of necessity because they often deal with unsanforized (i.e., not preshrunk) fabrics? You generally don't need to prewash fabric after it's been preshrunk by the mill in a way that carefully keeps it straight and stable to be worked with. Shirtmakers know it's still going to shrink more. They'll preshrink the collar fabric (much more rigorously than just washing it once or twice) and put an allowance into the rest of the shirt.
And all I said was that you ought to ask your tailor before you screw with the cloth you bring him. You're the one who's talking out of his posterior trying to find some reason to ignore good advice.