The Spirit is Sensible by Birth
When the spirit is infused into the body, the characteristics of the body are manifested. For instance, childhood, youth, old age, and the development of the mind, wisdom, and perception with age, these are the characteristics of the body. The spirit is sensible, wise and mature right since its birth, otherwise, how could it say "Why not" in reply to Allah's question "Am I not your Rabb?" [7:172] Listening to the question, understanding it and replying to it are proof that the spirit is sensible and mature by birth.
Maulana Allah Yar Khan (RA), Dalail-us-Sulook