Advantage of using
Using self-defense weapon by law abiding civilians have two benefits: (1) personal – you have better chance of overpowering assailant in defending yourself and (2) public – if weapon expected to be cared, it works as detergent to common criminals to assault any members of public, that may or may not be armed.
Using of weapon in self-defense should be constantly trained. Even such simple thing as paper spray can be dangerous to the bearer himself if not applied correctly: if used against wind, for example.
Other important and, often overlooked, aspect of weapon training is weapon retention, as if your weapon will be taken from you it can turn against you and your situation will be worse if you wasn’t armed in the first place.
Use of non-lethal specialized weapon in self-defense generally lowers the risk for both sides of the conflict.
Back from self-defense weapon to armed self-defense