I actually always share a suitcase with one of my kids and pack a suitcase with all the stuff we need—cosmetics, sun lotion, medicine, food and snacks, booze, ponchos, etc etc. It always works out great for us and helps us save quite a bit of money. Some stuff we could do without when trying instacart last trip but that was not as smooth as we hoped. Due to plane delays our food didn’t get delivered until a day late and even then was tough to track down.I am assuming that these 2 quotes are coming from people without kids who a) are young and have accidents in their pants so that multiple changes of outfits per day are needed. or b) have kids who are a little bit older and love to spill spaghetti, ice cream, insert favorite snack here, all over their clothes also requiring the multiple outfit packing. or c) have babies which leads into the changing of clothes for spit ups and such, but also require the diapers, bottles, formula expansion pack, which might be a bag all its own. I will also admit that when we go in the summer there are many times we have to pack multiple outfits per day for ourselves as we generally will be sweating like crazy in the Florida heat, and want to change in the afternoon evening. And/or if we are going to V&A or another dressier event, are not going to be wearing the shorts and teeshirts we wore in the morning.