Board Thread:Speculation House/@comment-25555436-20150726193923/@comment-25555436-20150727232712

The kingdoms themselves don't truly need it as they are well-defended and strong-enough so that even if they attract Grimm, they won't last (as proven by Breach).

The villages could use it though, if no other better solution is available, since these are not so lucky as the Kingdoms and have even more Grimm surrounding them. We know they get attacked, people get scared, get attacked by more Grimm, even more scared, repeat until everyone dies. But with this, they may not even be attacked at all, or very rarely, and if they do, they wouldn't attract more Grimm.

The only problem is the psychological issues....