system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Why isn't the Obliviate spell apart of the Unforgivable Curses?
gpt
Although its nature is rather insidious, the memory charm is too important to maintaining the wizarding world's masquerade from muggles. A typical witch or wizard needs a tool at their disposal to deal with a random muggle that happens to see something magical, and erasing their memory of the event is much preferable to, say, killing them for all kinds of moral and practical reasons.