People who want to are welcome to -- you be you.
People who don't want to should not be pressured to do so.
But somehow you're looking at the problem like "why don't people know they could achieve religious and political gain by having more kids?" Gosh, these dumb academics haven't figured it out. And who is thinking that academics even has serious political sway on these matters?
It is a marketing problem largely. People got too high a expectations these days. They expect everything to be perfect and are largely massively selfish in doing it.
We might be poor, we might be cramped in a tiny house. But the kids are fed, clothed and are in a loving family. It's better than a lot of wealthy fams I know where the kids are depressed because the parents rarely cross the giant house to have a chat or hang out with them. Everybody is hidden behind thousands of dollars of screens.
The middle class has a massive marketing problem re. Having kids and families.