I think part of the issue on agreement is that we're all thinking a little differently on how everyone would be... Like, canon universe characters would sort differently than characters that grew up in the wizarding world. For example, the deal with Shion not feeling compassion for Nezumi and only curiosity when he showed up in the window, he'd grown up never experiencing any kind of suffering, nor actually experiencing it himself. He's been forced to be completely detached from that kind of situations, so maybe if he'd grown up outside of No.6's elite system, he might think differently at age 11. (I mean, he acts totally differently in the West Block say when Rico is choking on that nut...) That's my thought, anyway. And I don't actually expect us to all agree on houses for everyone.
