like taking candy from a baby

Like taking candy from a baby is another way of describing an act, activity or job that is very easy to do. You could easily take candy from a baby because a baby is innocent and helpless and cant really do anything to stop you. When used figuratively, the phrase means that what you are explaining would be very simple to do with little to no effort at all. It is also sometimes used negatively to explain something might be easy but not necessarily appropriate.