At least, that's what I took to be the intent behind the title of the submission.
Love is not eternal. It is a simple state of endorphin chemistry. It serves a single evolutionary purpose. It lasts about three years.
Fathers being suspicious of their young daughters' boyfriends and dates is really just sexual jealousy.
Parents care less about their children than they do about their careers, their socioeconomic status, and what the Joneses think. That's why we have public schools instead of home education by one parent who doesn't have a "career".
2. I say the father is concerned about his daughter's mate selection because she carries his genes. She is a proxy for his reproductive success. He wants her to choose a good mate (e.g. someone who's more likely to stick around to care for the children) so his genes are more likely to survive.
3. No comment here, but I think it underestimates the effects of social proof in a parent's decision.
2. I'm not a parent, but what you just described is not at all what normal people would mean when using the words "sexual jealousy."
3. I personally think it speaks to a pretty unbelievable sense of privilege; there are a hell of a lot of jobs that don't support a reasonable standard of living for a family of four on one income.
"No one actually cares about anyone else."
Seriously?
As for your examples, the first may be inane, but the second is at least taboo and the third actually has some truth in it, and is also more or less taboo.