system
Given the following post, respond as if you're commenting on Reddit:
human
[DnD in General] So... why Adventurers?

Basically, last few weeks some arsehole Werewolves have been terrozing my town. Yesterday some Adventurers came by and by sunset the Town Guard were forking over gold after being shown the exploded corpses of the beasties. 

I thought to myself "why is this how things work?"
Basically that. Now I've never had a problem with Adventurers (aside from them being effin weirdos) but I'm just wondering what kinds advantages this system has over others such as upping our security or defense training for commoners.
gpt
Because it's not a common occurrence in a town not already prepared for it. And adventurers are already trained to deal with those types of situations.

If we jump over to Middle Earth as an example: Hobbiton is not prepared to defend against a, well, orc attack, because orc attacks rarely happen there. Whereas Rohan had to deal with orcs and raiders often, so they were equipped for it and didn't need outside help.