What if those 2 important facts to you, are not in fact facts, rather are two misconceptions based on the lack of information concerning Mary's previous life and so hence you make it a conjecture that she was uneducated and void of any wilful choice.
More evidence is below.....
However, Zechariah doesn’t go into his Canticle as directly as Mary does. And this is part of a larger portrayal of Mary in these early chapters as model disciple—one who hears the word of God and acts on it.
In fact, there is a subtle difference between the way in which Zechariah and Mary phrase their questions. Zechariah’s question could be quite literally (if awkwardly) translated as “According to what will I know this?” (1:18); whereas Mary’s question focuses not on how she will
know, but simply on how this mysterious birth will come about: “
How will this be since I do not know man” (my translation).
In other words, we can detect a subtle hint of doubt in Zechariah’s question:
how can I know this or
how can I be certain? For Mary, it’s not so much a matter of
how can I know—it’s more “I
know this is true because I trust my source, but I’m dumbfounded as to how it will happen.”
The angel clarifies the contrast we are drawing, by responding to Zechariah this way: “And behold, you will be silent and unable to speak until the day that these things take place,
because you did not believe” (1:20). Elizabeth, on the other hand, proclaims Mary’s faith: “Blessed is she who
believed that there would be fulfillment of what was spoken to her from the Lord” (1:45).
Zechariah was made a mute because of his unbelief, yet Mary was lifted up, because she expected it and wanted to know more about how it would come about, rather than why or if it will come about.
This is a great misconception about Mary. You see if you said Jospeh was poor, simple and uneducated, I would side with you on this claim because of his fearful reactions. Yet Mary when told she was pregnant with the Messiah, was not fearful and was almost expecting a blessing along those lines.
In Jewish tradition, woman could not become priests, Mary was most certainly reared up by an educated
Zechariah. Hence she was brought up in the temple of Jerusalem, top university of her day, for special reasons.
Woman used to give themselves as an offering to God, by serving as temple keepers and cleaners, hence making the temple their very home by sleeping in its quarters. You could say the temple was her convent and she, like John the Baptist's mum was like a nun of the convent. Yes that is right, Mary was literally a nun and she offered herself for God and his works and blessings.
She was being prepared to become a Lady of God, ready to receive God’s word in her flesh and to educate her precious Son for his historic role. The mother who knew the Hebrew Bible: the Law, the psalms, the stories of Genesis, and who read it all to and discussed it with her precious son.
It would now seem that Mary lived a hermit and reclusive life, within the temple walls and had given herself to God as is traditionally accepted of women in Judaism. That would explain her lack of surprise in her answer to Gabriel and her lack of fear or apprehension to the idea that she was to be used by God as a vessel for the Lord.
This is where the geanalogy of Mary comes into play, she knew that the Messiah would come through her lineage and she offered herself, as did the many women before her and the language regarding the other women highly suggested that they too offered themselves, yet God as scripture clearly states chose Mary. If it is written God chose Mary, then there certainly was a lineage of willing women who God could have chosen from, throughout the lineage of David. This would refute this false point you make.
The Angel therefore does not need to ask Mary for her permission, because according to her Jewish Torah knowledge and tradition and genealogy, she had offered her self to God and God chose her out of the women from David down to her, otherwise Matthew's opening genealogy chapter would be meaningless. She was not surprised and she had expected it and not learnt it only then as you incorrectly assert.
Here is where most conjectures are out to rest and silenced forever!