Think of a situation where you are automatically enrolled for organ donation when you obtain your vehicle license; however, you have the option to “opt-out”. This is a classic “opt-out” default option. Here, you are being nudged for organ donation. Its counterpart option is “opt-in”. In that situation, the default is that you are not in the program; you have to ask for it to enter into the organ donation program. “The opt-out default option makes life easy.” This seemingly simple change in the “choice architecture” has made a huge impact on behaviour change without any cost for its implementation….