Pardon me for I had to delete the previous comment because it won't edit. Here it is,
Then she brought him to her own folk, carrying him. They said: O Mary! Thou hast come with an amazing thing. O sister of Aaron! Thy father was not a wicked man nor was thy mother a harlot. Then she pointed to him. They said: How can we talk to one who is in the cradle, a young boy? (19 , 27-29)
Muslims tend to interpret the title of Mary in the verse 28 which is Sister of Aaron to mean as the Descendant of Aaron, because the prophet Aaron who was the brother of prophet Moses had actually lived a thousand years before Mary, and could not possibly have been her real brother. However, there is an esoteric aspect to this verse, which is the primary reason why the Quran mentions what people said to Mary. People were actually accusing Mary of violating the Mutable Cross, because one cannot have children in the Mutable Cross, the reason being that only relatives the Mutable Signs can ever possess are father, mother, and brother; and none of them are suitable for the purpose of having children. Here Mary represents Virgo (the Virgin), her brother is Gemini (the Twin), her mother is Pisces (the Fish), and her father is Sagittarius (the Archer). Also, afterwards Mary pointed towards the child Jesus who could then speak in the cradle because he was born of the Holy Spirit (Mutable Planet Mercury), rather than of any Mutable Sign. The Mutable Signs cannot give each other any children, only the Mutable Planets (Mercury and Jupiter) can give the Mutable Signs their children. Even Mary herself was born of Jupiter, since her mother vowed for a child to be dedicated to the Lord, and then a special daughter was born as indicated in the verses (3 , 35-37).
(Remember) when the wife of 'Imran said: My Lord! I have vowed unto Thee that which is in my belly as a consecrated (offering). Accept it from me. Lo! Thou, only Thou, art the Hearer, the Knower! And when she was delivered she said: My Lord! Lo! I am delivered of a female - Allah knew best of what she was delivered - the male is not as the female; and lo! I have named her Mary, and lo! I crave Thy protection for her and for her offspring from Satan the outcast. And her Lord accepted her with full acceptance and vouchsafed to her a goodly growth; and made Zachariah her guardian. Whenever Zachariah went into the sanctuary where she was, he found that she had food. He said: O Mary! Whence cometh unto thee this (food)? She answered: It is from Allah. Allah giveth without stint to whom He will. (3 , 35-37)
So, Jesus could speak in the cradle as an infant because he was born of Mercury, and Mary could find plentiful food provisions without the knowledge of her guardian because she was born of Jupiter. Evidently, the Quran talks of such narratives only for a much deeper reason than just mere history of someone or the other.