Swimmer’s itch is a rash caused by an allergic reaction to the larvae of certain parasites. The parasites can get under your skin when you swim in freshwater (such as lakes and ponds) and sometimes salt water.
Simply put, children have different taste buds than adults do. They taste bitter flavours more than we do. Since most vegetables naturally have a bitter flavour, it is easy to understand why picky eaters try to avoid them.