The day you realize....

[nanotech]

They sometimes pay a very high price for that golden child crown.
They then feel they have to keep on paying,  in order to maintain it.
Your sis had  basically given up her life , hasn't she justkathy?
This is ultimately what they expect.
Any less is viewed as betrayal.

[overitall]

You know, the GC thing is a weird issue....my GC sis does not understand why other people can't stand her...she really doesn't....my uBPDm coddled her and convinced her that she is the best thing since sliced bread....because of this she absolutely can't figure out why people don't like her...in my mind, she is a victim as well, just of a different kind...don't get my wrong, I have no intention of ever having any contact with GC sis, but I believe she's paying a huge price...when my parents (both in their 80's die, she will have no one)

[nanotech]

Over it all,you are right, she won't. 
This reminds me of my UNPDBrother who also struggles socially.
When my kids were little, my BPD mum would babysit for me and Nsis, we would take our brother out. We'd have strict instructions to do our best to find him a girlfriend. He was in his 20s and had never had one.
The next day we would both have to explain on the phone to mum, why he hadn't met someone.
It never worked of course. I genuinely tried to help him pluck up the nerve to ask a girl to dance. He would always find something wrong with her.  Mum would be angry with us and seemed to regret that she'd offered to babysit. She never once asked us how our evening had gone.
When I look back now I just think 🤔 what was I doing?  Why didn't I see the dysfunction in that?
Years later ( 35) UNPDbrother began to meet people through the internet.
He finally married the daughter of an N, who seems to tolerate his behaviour. She doesn't work and doesn't socialise much either. When mum was alive she doted in her, and she in turn played up to that role of the wife of all that is golden.

[JustKat]

Your sis had  basically given up her life , hasn't she justkathy?
This is ultimately what they expect.
Any less is viewed as betrayal.

Yep! My sister gave up her entire life to please Nmother, and she wasn't even the original GC. Our younger brother held that title most of our lives. Sis didn't become the GC until Nmother got cancer and had me and GC bro disinherited; me for being the scapegoat, and GC bro for marrying someone she didn't like. GC bro's marriage was the big betrayal and it cost him everything.

It's always been obvious to me that my sister was painfully unhappy, starting with college when she was forced to choose a career she didn't want. As for boyfriends, she went on ONE date and was so brutally teased by both of my parents that she never dated again. I'd bet my life she's a 58-year-old virgin. All she has for company is her doll collection. There's no amount of inheritance that could have persuaded me to live like that. Just NONE.

[nanotech]

OMG  justkathy me neither! She's literally sacrificed her life for her parent's approval.
Interesting how some of us see the light,  and some just stay in there, in that damp dark  fog.
It took me five decades plus, but I know I'm living now!

[overitall]

It's amazing how transparent the GC thing is...they (GC) just can't see it...my uBPM mentioned to my adult daughter that she can't understand why "everyone is so against GCsis"  My daughter says, she just doesn't get it....they are both delusional (uBPDm and GCsis)   Yep, they are...