Wow, there's a lot of complexity and depth here, and I'm not quite sure which tack to take in responding.
HU1, I think the essence of a lot of the discussion about your epiphany revolves around the question: would't it have been better if I'd never been born?
I've certainly wondered that in my dark hours (still do, from time to time).
There's a Peanuts strip from the mid 60s, I believe, in which one of the characters posits that "it would've been better if I'd never been born", which starts quite a discussion that ran over the next several strips. And, that theme is central to It's A Wonderful Life.
HU1, I'm not sure whether you'll understand my line of thinking here, because I think some of your comments indicate a significant difference between us in many of our views.
If I paint a picture of 1969 in my mind, I see your dismayed grandmother watching her daughter ruin her own life plus the lives of several children, and now the oldest child is headed down the same path. It's too late for her daughter -- she's proven time and again that she "loosens lug nuts", and that's the kind of person she is. But maybe it's not too late for her granddaughter. She's about to make a bad choice, but often teenagers do, and maybe she'll grow out of it if she doesn't get trapped into a cycle of poverty and undereducation. Hence the remark about considering an abortion.
I think it's fascinating that your sister responded so negatively. That's exactly the kind of response I'd expect from a woman who's experiencing the natural protectiveness that expectant mothers should feel toward their children. It probably was heightened by your sister's desire to flee your mother's abusive household.
It's quite a contrast to your mother's indifference, maybe antipathy, to you. Something just isn't right about that, and I don't mean morally, I mean that something was probably wrong psychiatrically with your mother. It's normal for a woman to be very protective of her children, even those she doesn't particularly like. That maternal bond between mother and child is normally very strong -- "mama bear will always protect her cubs" -- and the absence of that bond often indicates something going on with a woman. Perhaps addiction, perhaps mental illness, perhaps a learning disability such as a severe form of ADHD. In any case, and remember that I wasn't there so I don't really know, but I kinda think that your mother's poor choices indicate a psychiatric deficiency rather than an exercise of free will to choose to commit sin proving the essential total, complete, fundamental depravity of humanity.
And in that, I think there's a big difference between your mother and your sister, and I think your grandmother knew that, although she probably didn't ascribe the same reasons as I do. Whatever the reasons, at the time in 1969, your sister probably wasn't grown up enough to tell whether she was doing the right thing or not, but your mother was way too old to be given the benefit of the doubt about that -- your mother had already proven that she could (and would) ruin other people's lives.
Sometimes the least of the evils is all for the best.
Unlike It's A Wonderful Life, reality seldom works out with such happy endings, and none of us will ever know whether it would've been better if we'd never been born. All we can really do is make the best out of what we have to work with at the time. And unlike fairy tales, children who grow up in the cycle of poverty, undereducation, addiction, and hopelessness usually take the path your sibling's children have taken, regardless of whether they can tell right from wrong.
It's the rare exception that escapes that cycle, and you're certainly the rare exception.
