My mother had them on the backs of the sofa and chair when I was little, and on all the dressers.
My grandmothers had them all over the place. If there was a flat surface, there was a doily. One grandmother crocheted beautiful ones, the other bought them.
My great-aunt was a "tidy" hoarder. She saved every phone book, every broken comb or worn-out brush, every piece of mail, every..... She'd put them in boxes, stack them up and put a doily on the box. Every week, she'd wash, bleach and iron the doilies and put them back on the boxes.