Question

What is Franklin's reason for speaking to women, not men, about the ways to create a happy marriage?

Answer 1

so he can get the women's perspective and tips on how to make it work and to get how she feels about things

Answer 2

Franklin says he is speaking to the women because he thinks they will listen to his advice better than men will. He says, "I esteem them better disposed to receive and practice it, and therefore am willing to begin, where I may promise myself the best Success.