I had a realization the other day that surprised me. I tend to get carried away when I'm worried about things (no, I knew that already, that's not a surprise), and back when L was a baby, I would worry sometimes that I was going to be a terrible parent because of all the stuff I didn't already know. I got really hung up on not understanding elementary school-aged kids, and when I told C that I was going to be a bad parent! because I don't know anything about 10-year-olds! he told me "you do have ten years to figure that out".
L just hit the halfway point in that timeline, and it occurred to me that "big kids" are a lot less incomprehensible than they used to be. I can see ways that they're just bigger kindergartners, and aspects in which they're totally different from littler kids, but I can picture L getting there from here.