Logic of not being afraid of a real thing that can kill you?
Eventually the "losers" find out that IT wants them to be afraid. So they make a whole thing about not being afraid of IT. Not like this is the first ever movie to have kids trying to overcome their fear of something.
But that makes no sense to me in this context. Georgie wasn't even that scared when he reached down to get his boat while Pennywise bit his whole fucking hand off. He was as real as it gets. Even if he had no powers and was just a lunatic serial killer adult, you should still be afraid because he can easily kill 13 year old kids.
Compare this to something like Freddy Krueger(which even the movie referenced). He only attacked in people's dreams so it made sense to not be afraid and try to control your dream. But you can't escape reality like you can dreams.
And even if that worked and IT didn't wanna eat them...just kill them and find other kids to scare?
Hope i'm not missing something obvious. I didn't read the book, only judging by this movie alone.