People do kendo for many reasons. Some like the discipline. Some exercise. Others like sparring. Still others think they are modern day samurai. However, what most will be faced with is the realization that it is a way of life or has many applications to daily life.
I’ve come across this essay on tofugu which gives a brief introduction to kendo as well as a number of reasons why we do kendo, including to “…have the focus of a short Japanese girl”. Read it for yourself.