Remember Disney's Freaky Friday, about a teenage girl and her mother who switch bodies after they wish they could be each other (thinking that the other's life is easy), filmed originally in 1977 and remade twice since then? All had their genesis in the 1972 Mary Rodgers novel, which was followed by a sequel where the brother in the story switches places with his dad.
Would you be surprised to know that the notion of a parent changing places with a child via some sort of magical wish/talisman is not a new idea? The original concept was published as long ago as 1882: Vice Versa, the tale of a stuffy British businessman who changes place with his boarding-school bound son, can be read here. (Note: it was updated in the 1980s for American television, with Fred Savage in the boy's role.)