Review Detail of Spielar in Ninja Recruitment System

Your mc and the reactions of people to your mc don't make sense. Regardless of how other ninja children might grow quickly the ninja would not act like it is perfectly fine for a 6 month old child to be able to spout philosophy and think like an adult with the knowledge of said adult. They would figure the child was being possessed through a jutsu and would lock that child up while trying to release the jutsu. Only an idiot would think a sheltered child spouting adult concepts without ever having to deal with said concepts is normal.