I think it makes sense that they don't want juveniles as being part of a church that condemns and shuts out their parents... Which wouldn't make sense at all, only adding a conflict between church and home/family.
So with their stance on homosexuality...it just isn't surprising.
I appreciate your comments, Sees. Even though I think that the policy is flawed and not in the best interest of innocent children, I can understand why, with the Church's stance on same-sex marriages, it would have felt the need to institute a policy in the first place. I can't speak for my Church's leadership, but I don't think the decision was motivated out of hatred. I just think it was misguided. Just so that people who would like to be able to understand why the Church would have instituted such a policy, here are some thoughts from my liberal Mormon perspective...
Churches have every right to set standards of conduct for their own members. I personally have no issues with same-sex marriage, and even though I wish that the Church would welcome same-sex couples into their midst, I support their right not to do so. This goes along with the basic terms of separation of church and state, which I fully support.
So, regarding blessings: When a baby is about a month old, he or she is typically "given a name and a blessing" during an LDS Sunday worship service. This is just another word for "christening." This assures that the child's name is added to the records of the LDS Church -- not as a baptized members, because that comes later -- but as an as yet unbaptized child. As a part of this blessing there, is an inherent acknowledgement by the parents that they will raise their child by LDS standards, which would include the belief in the sanctity of marriage between a man and a woman. A same-sex couple are hardly going to do this, so to perform this blessing would be a complete farce.
And, with respect to baptisms: Mormons typically baptize their children at the age of eight. It's seriously pretty hard for me to imagine a same-sex couple even wanting to raise their child LDS and permitting him to be baptized at the age of eight. But let's say it was allowed. The Church has the right, as a Church, to teach its members what they believe God expects of us. Mormons believe that marriage is to be between a man and a woman. Children and teens are going to be taught this principle and the Church has every right to teach moral principles within its walls. I can't imagine how difficult it would be for the child of a same-sex couple to be told that God is displeased with his parents' moral choices. It's one thing to be told that you're not living the way you should be, but quite another thing to be told that the two people you love more than anything else are sinning -- particularly when you can't do a thing about it. Better that the child not be put in this position at all. If he decides after he is of age that he wants to become a Mormon, nobody's going to stop him.