According to the Content topic, how does the proposition differ from a thesis statement? How are they the same? Are the words "should" appropriate in a proposition statement? Why or why not?

Here are two proposition statements examples:

Example #1:

Proposition statement: Since many adults do not believe that it is possible to return to college and achieve a degree after being out of school for many years, based on what I share with you today regarding non-traditional students achieving higher GPAs, successful job placement after college, and the level of satisfaction these students find in their new careers, I believe you will choose to consider higher education as a realistic option.

Example #2:

Proposition statement: Many people don't wear life jackets when boating because they may feel that they are not stylish or comfortable, or they are experienced swimmers, however, after I share with you what I have discovered about style and comfort issues, boating laws, and drownings that were preventable, I believe that you, too, will choose to wear your life jacket when boating.