In this I have to agree with Conner. Granger has shown remarkable maturity beyond his years, and due to his upbringing and education, I feel he would make an excellent father. We all, despite our years, can act like kids sometimes, and I really don't see anything wrong with that. It certainly doesn't preclude people from being good parents.
Now, you were talking about him being emotionally boyish, and I find very little evidence in the story of late to support this theory. Yes he does flirt, and agreed he does go on the prowl sometimes. However, I fail to see how this would stop him being a good parent. One I feel, has very little to do with the other.
Now, onto the chapter!
Well, that was a shocker, I guessed there was a wedding coming up, but never expected it to be quite so soon. She seems like a formidable woman, and Granger would do well not to piss her off too often!
Just how many Wilcox's are out there? I had to do a double take when I read that, because I thought he was Captain of the Barracuda, only to realise it was another Uncle! It seems this clan get everywhere. But Granger seemed to handle it with great maturity!!
It did make me smile when he explained to Travers that the missus would be the third wheel, but I surmise that the relationship just got a little more complicated with the recent addition.