> but for some reason at least in US society you’re no longer allowed to broadly talk having kids like you used to be able to.

This has not been my experience. What has changed is that its now looked-down on to denigrate people who choose not to have kids (in some circles), and that people are no longer treated as heroes for having children. It had historically been the case that people who chose to not have kids were browbeaten about their choices.

I have had no issues talking about my children at all even with people who have remained childless. This is because I respect other peoples' decisions when doing so.