I feel any child that wants to be should be allowed to be a altAr girl

if they want. Women have callings too - to be nuns. Think for a moment if a young girl wanted to be an altar girl, but was refused because there were more boys that wanted to do it and she did not fulfill her potential by serving God like she may have had she been allowed to be an altar girl. Maybe because she could not participate, she did not become a nun. how sad would that be. If it is thought that boys participating through being altar boys can bring them closer to the priesthood, then why can’t young girls participate to bring them closer to serving God by becoming nuns after hearing the calling when they were altar girls? Nuns are important too, not only priests and deacons.
I am not saying girls should be “the same”. They can’t be priests or deacons. Why not let them participate as an altar girl then? They can still serve the Lord and I think they should be given the opportunity - this is JMO.
So any child that wants to be President should be President? What if a girl who feels called to become an Altar girl also feels called to become a deacon/priest a few years down the line, should we allow them to do that as well?
If a Bishop decides to refuse a man’s application for the Seminary does that mean he is being prevented from fulfilling his potential? Or could it indicate that God is calling on him to serve in a different way by waiting till next year or maybe as a monk, a Priest in a religious order or a married father?
I think what would be really sad is if the number of Parishes without Priests increases. There is a link between Mass and Vocations, for centuries girls have not served at the Altar, has that prevented them from becoming nuns or otherwise fulfilling their potential? If the link you suggest exists then there should have been some sign of a fairly drastic rise in girls joining Convents, which has just not materialised.
Part of the reason that boys being Altar Servers has been effective in producing Vocations is that they served with a Priest who was at some point probably an Altar boy himself. If we are seeking the same effect for girls then we need Nuns. At one point many Catholic/Girls schools would have been operated by Nuns who taught the children and in doing so the girls learnt about that Vocation. For proof just look at the number of girls who go into Primary Teaching courses, partly inspired by the example of the people who taught them at Primary. Had those people been Nuns at least some of them may well have followed the same path.
If the possibility exists in Parishes today it would be a great thing for a Nun, or any doctrinally sound woman for that matter, to lead a prayer group or lead a group for young girls to learn about their faith and how to pray etc. The fact is for most Parishes that isn’t possible because Nuns aren’t there. Now a lot of people, including some on this thread, seem to suggest in the absence of a group of some sort for girls they should be allowed to do exactly the same thing as the boys. I would suggest that the opposite is true.
The fact is we get more Nuns when they experience the full power of the Mass, and that can only come about when there are enough Priests to say Masses properly and to spend time writing and giving inspiring Homilies on the power of Prayer, the Mystery of the Eucharist and the need for Vocations. If those girls are taught while sitting in the pews or the classroom of these things then many, if not most, will consider a religious vocation in the same way they consider marriage. And when those girls grow up some may become Nuns and then they can inspire the Nuns and Priests of tomorrow. The solution is right in front of us, it is in the Mass.
The need for Priests has seldom been greater so to tamper with something which has been for generations a source of Priestly Vocations is not something that makes sense to me. I strongly believe that God can overcome any obstacles we could ever put in his way, but we’re not exactly making it any easier for him to do so by reducing the numbers and frequency with which boys serve at the Altar.
Boys and girls are both important, I don’t think anyone has suggested otherwise. You’re right Nuns are important as are Priests and Deacons, but to increase the number of Vocations our focus should begin with the Mass, the Sacrifice of Our Lord, and for that we need Priests.
I think rather than looking at what to a societal view may be a matter of fairness or equality we should look at it in the long term. If you say today ‘Ok, they can’t be Priests or Deacons so why not Altar girls’ then who is to say that 100/200 years from now there won’t be a similar opinion saying ‘Ok they can’t be Priests but what about Deacons’. The slippery slope isn’t the best argument but it is worthwhile to look at what has happened to the Anglicans over the issue.