I assume the men and lesbians among our readers would prefer I had this photo from the opposite side.
That means if a girl wears just that shirt, you are going to see her bra, or even boobs, which I'm sure sounds exciting and positive to many men, but violates workplace and school dress codes, as well as many public decency laws. Also, these are clothes for all women of all ages, not just young, attractive women.
This isn't a mistake. The solution is supposed to be layering, which has really caught on in recent years. All of these stores also sell plenty of tank tops, camisoles and plain form-fitting T-shirts, sometimes dedicating entire sections to clothes specifically designed for use in layering. Catalog photos will often show girls wearing three or more layers.
Count 'em. One, two, three. Or as JC Penney sees it, $, $$, $$$!