According to Wikipedia, pepper spray is banned for personal use in all states except Western Australia. This is an outrageous restriction on a non-lethal means of self-defence. Sadly, most voters appear comfortable with the status quo.
The only way to change policy in favour of individual liberty is to take baby-steps. Instead of jumping straight to legal gun ownership, a moderate position would be to question the rationale behind the pepper spray ban. Pepper spray reform could elicit a more reasonable response from the public than advocating guns for self-defence, because there’s less potential for emotional fearmongering when it comes to pepper spray.