I guess I would argue with it. While the very patterns of life have changed for all the survivors, they have changed the most for Carl. All of the survivors have become loners, isolated in their own fear and mistrust, but Carl has the least safety net. He has no peers, what with the hispanic couple taking their kids away when the crew left the quarry and with the death of Sophia. He has a clueless mom who has no natural second to help her watch Carl, and a father who is wearing the conflicting goals of the group on his shoulders, so he is the one who must leave the comfort of whatever relative safety they have. His parents are torn between wanting to protect him, and give him whatever semblance of a childhood remains, and the need for him to grow up quickly because mucking about in a streambed brings such horrible consequences. What's left for an 11 year old? In many ways, I find Carl to be the most interesting character on the show.