Which part of thai excerpt from oliver twist by charles dickens hints that oliver was not expected to live very long?

Oliver Twist written by Charles Dickens is stated that Oliver’s high spirit

may be inherited, but may be also attributed to him celebrating his ninth

birthday with emphasis on him “having any ninth birth-day at all” which

suggests that no one expected, including himself,  that he will to live to his ninth birthday.

i believe it is the first choice (1.)

because the major theme is(“both the wild and civilization have rules.”)

and also as u said,( based on what buck learns within the call of the wild, "both the wild and civilization have rules".this is true of humans within society as well.