Guy suddenly isn't "sure" on kids after becoming interested in me.....BRUH

Anyone other childfree ladies experienced this?

So, I'm in my 30s, cis female, and I am getting comfortably chatty with a dude at a party. He mentions how kids are in his future, perhaps even as a "duty of sorts." Kids are definitely in the picture prior to meeting me.

I mention that I don't want kids like ever, anywhere, anytime, not in a box, not with a fox, and I intend to be sterilized in the near future.

Suddenly, he's all like: "Well, maybe I could be open to adoption" OR "AcTuALly I'm not sure anymore about kids" OR "I mean, kids aren't everything..." OR "I still have more I want to do..." something along those lines. All of the sudden "doubtful" on children when he wasn't before.

DOES HE HONESTLY THINK HE'S FOOLING ME???!!!!

NOTE: Would love to hear if this is a thing among childfree gentlemen as well!