My husband packs for both of us when we go away and though I love him and know he loves me, I definitely find it, if not infantilising, then yet another example of his control freakery.
In my case, pun unintended, but apt, It's not really worth arguing about, because he gets in such a state if he hasn't packed. He doesn't trust me to pack stuff and on the few occasions I've done it for us both, will unpack and repack, sometimes in the middle of the night when I'm safely asleep but most memorably when the taxi was waiting outside.
Oddly, we invariably arrive at our destination to find that he has forgotten something of his. Not me, I put all my stuff out (plus shared stuff such as toothpaste, deodorant, sunscreen etc which I'm responsible for) and let him get on with it. His clothes and toiletries such as razors and shaving foam are not my concern, so I don't bother.
I came back from my first business trip and he opened the case - yes, he likes to unpack and do the laundry - expecting an explosion in a clothing factory. I could sense his stunned disappointment that everything was neatly done and actually better than he would do it. He grudgingly congratulated me. Ironically, my ex-Army dad taught me, and my mum would never let him touch the holiday ironing and packing either and made a huge performance of it. They loved each other too.
I make no comment about individual relationships, but I wouldn't mind betting that some posters' husbands feel the way I do, but find resistance futile. It's just that this kind of thing is probably more common for women to do in order to exert annoying, though essentially benign control. But though I call it benign, being treated like a child by your partner is not that appealing whether they have a dick or not.