Yes, the plot line "Switched at Birth" is somewhat popular in fiction, especially soap operas, and worked well for Mark Twain in his "Prince and the Pauper," in which a poor boy is mistaken for the wealthy prince and heir to the king. However, in real life that plot line is really not so convenient as is often imagined. It could actually be better to be a poor person living a happy life than miserably wretched rich person living in opulent splendor that is meaningless.