It's always bugged me that NPCs and pets and such can't help us open the weight doors in Quicksand Caves. Us poor non-Galkas would like to be able to open them solo! Just yesterday, I was doing some trials in Quicksand Caves, and would've been able to finish a LOT quicker if I could've opened those doors. Nursery Nazuna is bigger and fatter than a Mithra, why can't she help me open the door, but another Hume/Mithra/Elvaan can?! For that matter, my NPC is Elvaan and she can't help me either! Just seems silly...
(I just know some Galkas are going to be laughing at this thread...)