Wanderer's new body - thoughts?

I think Pet's body is all wrong for Wanderer. For one, she's too young, especially to be with Ian. Secondly, Wanderer is supposed to be a very strong, experienced being. She's well-known throughout her species as being an adventurer, and one of the most well-adaptable souls, which is why they chose her for Mel's body. So it didn't sit well with me that she ended up in a body that looks so young, weak and innocent. Yes, she's a very kind, caring and sweet being, but I think her strength and everything she's made it through should have been better represented in the body she ended up in. I pictured someone older, with a more athletic build to show her strength. A kind face is fine, but a child-like face and a voice that's high-pitched and giggly isn't right for me.

It seems like Stephenie has made the much younger female/much older male pairing a reoccurring theme in her books, and this time I don't think it works. I just can't picture a strong, well built man with someone who's only 16 and looks innocent enough to be 7. I feel like Ian's character ended up getting a raw deal, despite the fact that he said he doesn't care about what she looks like.

Thoughts?