Targeted Advertising or Selling in Changing Areas

Whenever I go shopping with my spouse or kids, I often end up waiting outside changing rooms, whilst they try on clothes etc.. Not much to do while you wait, usually in an area where there is nothing around of interest. e.g. With my wife, I am surrounded by women's clothes etc. They often do have places to sit, some more comfortable than others, so there is already an expectation or acknowledgment that some waits could be lengthier than others!