Warning...... Long, Rambling Post Ahead !
IMHO I think Casey 'knew' she was different long ago....long before Caylee was conceived, long before Casey didn't graduate with her class. Maybe her little outbursts, her whining about 'losing it', her mentioning needing to be committed (and we don't know how many other types of 'tantrums' she threw at her family over the years), were her attempts at throwing out there what she knew was not 'normal', and wanting to see the reactions of others.
Would they take her seriously? Would they chuckle and roll their eyes and think she was pulling their leg?
What I'm saying is ...... What if years ago Casey begin 'testing the waters' as far as getting reactions from people about her having a possible mental/personality disorder and depending on the responses, she chose to pursue it or go back to sweeping it under the rug.
*dons stone-deflecting suit*
I read every word of your post and it was extremely thought-provoking.
I am beginning to think that each of the other family members decided some time ago that Casey was not mentally well and maybe that is why they steadfastly appear to refuse to blame her for anything. Maybe in their minds, she is not responsible.
This would not help her legally. She wouldn't meet the stringent standards for being legally insane.
Incidentally, while flipping btw TV channels, I recently heard a small part of a show which began with this statement: "The largest single population of mentally ill persons in the country is not in any psychiatric hospital--it is in the L.A. County Jail."
NO, I don't think we should let all those inmates out! I'm just saying that there are, sadly, some mental illness issues for which we have no good solution.
As for Casey, while maybe her family members saw something wrong about her (but don't admit that to any outsider), I don't think she will ever accept any serious help for whatever condition(s) she may have. And even if she did, it's too late to save her from the murder rap. If things continue as they are going, she won't have to function in the outside world, ever again.