Some people are interested and learning more about how effective they can be. Some people are actually using them sometimes. And other people always use them. In other words different people are in different stages of change regarding condoms. From a practical standpoint this little idea of stages of change has big implications.
Some people know nothing about condoms while some people always use condoms.
And then there are several flavors in between. These different stages define different kinds of people. And clearly you must use different persuasion tactics on people depending upon what stage they are in. Think about it. Let's get more explicit about this idea of stages.