The Strange Woman is an enemy of wisdom and a danger to the soul of men.
If Chapter one was like the opening assembly of a new school year then chapter two is like the very first class session which sets the stage for all other lessons.
I have a feeling that these are in the text so that we will notice them and understand the difference in the two groups. These comparisons complement the Two Ways described in chapter one.
The Ten Conditions of Proverbs are like the objects on a syllabus. They aim for learning outcomes.