That was supposed to mean if they managed to raise you to adulthood, you don't abandon them because they could still contribute to the community.

Mostly thru childrearing, keeping watch while others slept, and passing on knowledge and skills.

Not to mention a long difficult life likely making them plan long term and only the most risk adverse surving. Coupled with lowered hormone levels as we age and they're supposed to be the calm rational ones in the room.

A lot of the problems with Christianity was/is really problems with feudual Europe and how they twisted the religion to get the masses to tolerate wealth inequalities. In this case they they used the phrase to make people confirm to hierarchical roles. If ever man was king of his own castle, it gave him an outlet to take out his frustrations. The wife took hers out on the kids. And back then people stopped being kids at like 9 or 11 because it fucking sucked.

Couple years later and the cycle repeated

And it should be obvious today's oligarchs want to return to those times rather than progress from them.