Most of the people I know who have learned any martial art became entranced with the practice. Building concentration and powering up in a functional way seems to make people strong not only in body, but mind.
Which is why it’s pretty damn cool that some Nepalese nuns are practicing kung fu for up to two hours a day. At the Amitabha Drukpa Nunnery, just outside Kathmandu, these nuns work the same moves Bruce Lee did, and feel it’s “very helpful for” their safety. They also say it helps with centering them for meditation, which they do for long hours.