I picked up a new Purple Label linen jacket for summer. Took it to a tailor to have the sleeves shortened and the jacket tapered a bit. He gave me the recommendation that I get it dry cleaned first and then bring it back for tailoring because dry cleaning will shrink the jacket a small amount (due to it being 100% linen). Is this always the case or he just assuming I use a lousy dry cleaner because I'm in my early 20's? Thanks for the help.