system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that "mom and dad" is much smoother and natural to say rather than "dad and mom"?
gpt
It just has to do with the way our mouths shape the sounds.

"Ma Mand Ad" flows together nicelike, the end of "and" and beginning of "dad" are natural because there are no more than two consonant sounds together and they are a single syllable sound.

"Da Dan Dmam" is awkward because you have the NDM sequence in "and mom" so you're making more work for your mouth, and the sound is jerky and disconnected, basically adding a vocal pause that feels wrong, because by reversing the order we can retain the meaning and say the exact same thing, so your brain wants to say it the easy way.