Trend or Phenomenon?

Hi, I'm coming from a researcher perspective lalo na't sobrang dami na 'yung interested in conducting a study about voluntary childless or child-free.

Yesterday, we did our initial consultation for chapter 4 (Data Analysis) and it's visible na sobrang lacking kami sa participants since 10 individual 'yung target pero naka-4 palang kami. Anyways, it's only initial consultation.

Out of nowhere we've been asked this question,

"So 'yung mga Filipino na nagp-post about being aggressively child-free is still not yet married? If that's the case, you need to assess whether phenomenon or trend lang itong child-free."

So, I'm here asking your perspective about the concept of child-free. Is Filipino's really wanted to not have kids or this is just a trend that somewhat influence Filipino decision?

Nature or nurture?

P/S - Bka meron po dito child-free couples or individuals married for atleast 3 years or more, willing to be interviewed (27-48years old) and residing in NCR. Maawa na po kayo saaming mga 4th years college students.

We just want to contribute something.