I never used a dummy with DD because I didn't see any reason too. She had a bit of reflux when she was a baby but that settled quite quickly with gripe water and so on.
DP always wanted to use a dummy as he said 'that's just what you do with babies.'
We always had comments from his side of the family like 'why doesn't she have a dummy' and blah blah blah.
I'm currently pregnant again and DP is ADAMANT he wants this baby to have a dummy. I personally don't see the obsession with a dummy as some babies are able to be soothed without one (no judgment for parents who choose to use dummies btw and I'd definitely use one if I felt it would help DC!)
I really don't understand the dummy thing and why he's pushing for it so much without DC even being born yet. I'm not sure what I'm actually asking but I just thought I'd come on MN to hear opinions and see if I'm missing something here!