Do you think the White Rabbit’s glove is a metaphor for something?
I'm sure it is. I don't know what for though.
Why do you think Alice compares herself to other children when she’s having trouble with her size?
Maybe because she doesn't feel like herself.
Yea I think Lewis Carroll used a lot of metaphors in his work. What it is I couldn't tell you, but i'm certain here are many laid within the text.
For example, I think the way Alice compares herself to other children when she's having issues with her height, maybe she feels a little awkward in real life that the other children are all growing and she isn't. Some children are highly insecure at Alice's age because they want nothing more than to fit in, but hormonal changes are making everyone change around her, but her.