Bit by bit, our links to significant episodes of human existence are dissolving.
Begetting is baked into our nature. It is part of the goodness of the created order: to procreate is to partake in the blessing of God (Gen. 1:28).
Older people continue to run things. Look at the two main Democratic Presidential candidates in the US. For all the struggles to get younger people into positions of leadership and decision-making, some institutions remain inherently age-weighted, and will stay that way.
If you've lived in evangelical sub-culture long enough, you probably have Gentile friends who try to do the Messianic Jew thing, kippahs, tallits, shofars, and all. But it's not enough.