Have there been any theories regarding Sarah and how she's "not like Clem" and other people?
Is it simply because she's been raised in a sheltered environment due to her father being overprotective or is it because of some underlying mental disorder? Some kind of low functioning PDD? With Carlos being a medical professional, both are possible - trying to protect his only daughter to such an extent that's more of a disadvantage in this world or diagnosing a mental disease (which of course would've happened even if he wasn't a medical person, but you get my point).
Throw your ideas at me, I'm curious.
Also I'm seeing an event coming up in which Clem has to save Sarah who's unable to help herself, which would finally open Carlos' eyes but it might just be too obvious to actually happen.