Sadly, outdoor cats are so horrifically bad for the ecosystem where I live (Australia), that any owner who allows it is irresponsible in my opinion. Thankfully

Sadly, outdoor cats are so horrifically bad for the ecosystem where I live (Australia), that any owner who allows it is irresponsible in my opinion. Thankfully, the local government for far north QLD (my state) is now looking into banning outdoor off-leash cats the same way they do dogs, for exactly this reason. They're too destructive here unfortunately :(