One of the basic principles of teaching Kempo is that Kempo changes to fit the student.
This doesn't mean you don't have to learn the basics. It means that as an instructor, you should modify techniques you teach to fit the student.
A petite female who weighs 110 pounds soaking wet is going to have a different fighting style than a 200 pound man a foot or more taller.
There are differences beyond the obvious size and weight difference. They have a very different center of balance. The man will generally have much more upper body strength. Then there is overall social conditioning that the different genders gets.
You want to successfully teach women and young girls in your school, you will need to understand these differences and be able to adjust your teaching style for each different kind of student you have.