@Ethancdavenport Some forms of self defence of course doesn't require any equipment.
They're probably preferable in case the law-system later gets involved.
I recall one Stockholm-group trained Krav Maga.

In the USA, it can be different of course.
I recall one Oakland queer group going to problem-filled areas where they lived, as "armed feminist vigilantes" probably around 2011-12 or so.