Or, the kind of people who bought iPhones in 2008 were a different subset of the population than those who didn’t and as such they have different opinions and preferences when it comes to family and kids?

With that said, I can also see that infinite entertainment and infinite information makes you deprioritize having children.

But it’s far from proof, this study. It’s more like “I found some numbers that support my already existing opinion, so let’s run with that”.