Answer:
Aaron take this on at age 13.
Step-by-step explanation:
According to the Jewish holy book, person hit responsibility age at 13 and he/she is subject to obligation at this age and it is otherwise referred to the age at which the law permits one to manage his own affairs.
Talmud is a legal document that contain Jewish law, customs and tradition that is used to regulate the Jews affairs and it was prominent within the Jewish land.
So, Aaron can take on self responsibility according to Talmud at age 13