"That is fine by me. We have a lot on our plate as well, " Rex noted and knew that even if they wished to have a functional city with modern facilities such as transportation, education, healthcare and other privileges, the Fox understood that the nature of this world was to build, destroy and build again.
Whether the chicken comes first or the egg comes first, it was a question that could never be answered and it would take an eternity for people to figure it out. That was why Rex could emphasise more on the defending portion until Jin felt that it was ready to go for an all out attack as Kraft had theorised.
Still, it was precisely because it was just a theory, that Rex also believed it was not worth the risk to send an offensive force until they were truly ready. Besides, raising Pandapolis's growth was a long term investment and being able to have enemies coming to their city might actually be better than going to theirs.