I see this dorky mistake everywhere, not just in Hyphen magazine, but I wanted to draw some attention to this smart, much-needed quarterly-ish Asian American publication.
EVER BOUGHT A CAR, a t-shirt, or a frozen dinner?
Kudos on the serial comma. Makes me a bit wistful, especially since Hyphen is produced by a bunch of young 'uns, but, umm, a T-shirt is called that because it's shaped like a capital T. A t-shirt would have a collar, something like this:
I like how her pose is a bit forlorn, as if her body instinctively knew that it's wrong to wear baby blue.
Anyway, the case of the letter is really important when the meaning of the word depends on the shape. For example, a U-turn is smoother than a u-turn, which is what happens when I misjudge the width of the street and hit the curb. And an L-shaped sofa is better for parties than an l-shaped sofa. Also, it wouldn't make sense to write "Dot your I's" instead of "Dot your i's."
Of course, Merriam-Webster backs me up on this.