Okay, so here's how I see it.
Women, including young girls, have no place in the Altar. From old this was the case, and this is why it was so extraordinary that the Theotokos was allowed in to the Holy of Holies (a place where the priest (always a male) only entered but once a year).
Why? Well, there are many reasons mentioned in the OT and the NT. To me personally, the most poignant lesson that women are not to enter the Altar, which is reserved for the clergy, is Christ choosing men to be His disciples, and therefore bishops, priest, etc. He picked 12 men, and not a single woman. Why did He do that? Who knows? I also don't know why God created mosquitoes, but He did. I'm sure He knows best and has a reason for all He has done.
That's one reason. Another might be that women have their monthly cycles, but, we won't go there because that has been covered ad nauseam.
What about when she's a mother....who will watch her children when she's busy in the altar? I can't picture daycare behind the iconostasis.
Finally, on a completely non-theological note....I don't care what you say, girls love to flirt. With the odd exception, they will fluff their hair, redden their cheeks, elongate their lashes and giggle when a boy comes within sight. Boys love to flirt with girls, as well. Isn't it bad enough that the boys spill the wine, almost set the church on fire when lighting the censor, etc.....without the added burden of having to smile and impress girls at the same time.
Mt. Athos is forbidden to women, and we should respect that. Granted in emergencies women have been permitted on the island, and in emergencies with permission, women have been allowed in the altar. Women have a million places they "can" be and a million things they "can" be doing....we don't "need" to do everything and go everywhere. ....and yet we have those who complain about this restriction...that the monks need to be strong enough to handle seeing a woman, etc. Who says they aren't....but, it's an unnecessary distraction. Why make them feel uncomfortable? Isn't that why women often go to female exclusive gyms? So that they don't worry about what is showing or bouncing, and that some guy is eyeing them? What's wrong with the sexes being segregated if they wish to be? Not everything needs to be equalized.
As for the women keeping quiet, not teaching and not reading in church, etc....which is mentioned in the Scriptures....these things have changed with the times. Women were forbidden to speak, but, women also didn't work, nor vote. Now we do, and our roles and responsibilities have changed in the life of the Church.
The "silence" portion wasn't even completely true in the time of the Apostles, as many women went out and preached from the get go....and many found favor in the eyes of God for their preaching.
Therefore, having women read the Epistle, serve on the church council and act as Sunday School teachers is the norm. It's rare to find a man who is even interested in filling the role of Sunday School teacher, and therefore, the women have taken it on, as it's better to have a woman teach your children, then let them out in the world with no knowledge of their Faith.
As for the reading of the Epistle, I have seen both women and children read it...and it didn't upset me. As the norm, it's the reader, or another man. However, I don't honestly see anything wrong with women or teens reading. They are not entering the Altar, they are simply reading within the Nave. I've seen one teenage boy read the Epistle in Ukrainian, and a teenage girl read the same one in English after he had finished. They read beautifully....even better than the man who usually reads...who yells so loud, one can't even understand what is being said.
As long as they are not being disrespectful, and are not in the Altar, I don't see the harm with older children taking an active role in the services.
“Let the little children come to me, and do not hinder them, for the kingdom of God belongs to such as these." Mark 10:14
In my parish, men have ruled for 65 years! Women played no role whatsoever. How disheartening to be a woman in such a situation. The men held the candles, the men got to carry the banners, the icons, the......you name it. Why? You know there are women in the parish who are by far more faithful and yet they can't even carry an icon. Why?
A few years back I saw other churches where women got to carry the banners out of the church when greeting a bishop. Wow, I thought. Really? So, at Pascha I asked my priest if he would mind...and he said he saw no issues with women carrying things outside the Altar. So there I was....the first woman in the history of my parish to carry the banner of the Theotokos around the church on Pascha! When I gathered in the center of the nave with the men, you could hear the whispers....and then I glanced at the choir which had gathered near the door, waiting to exit and sing....and the women were all giving me a thumbs up.
Why shouldn't I carry the banner?
I have carried ever since....and to be honest....I only carry it out of principle...because that thing is HEAVY!!!! Oh my gosh!!!! I can't wait for the end of the third time around....and then climb the steps....man! I don't know how the guys do it....I can hardly keep it balanced!
Let's not forget the Incarnation only occurred due to a woman. Women are not disliked or discarded in the Church. We simply have different roles from men. Jobs need to be delegated to different individuals, otherwise, everyone would squabble over one duty, while completely neglecting another.
There are plenty of things for women to do in the Church. Even kitchen duty is an honor. We get to feed our people. We get to teach the kids. We get to keep peace in our families. We nurture, we love, we clean, we make this world a better place.
Leave the altar to the men. They have little enough to do otherwise.