I come from a Mormon culture where teens are asked to abstain until marriage. A surprisingly high percentage of them do so. I realize that this is definitely not in the mainstream of American culture.
So, what about those of us who have gay orientations? While this is a question that hasn't really been answered well, some things are sure. The idea that teens should be allowed to express themselves by having sex is definitely off the table. I don't think the church should have a different standard based on orientation, in this instance. Regardless of American or any other culture, I think this one is a given.
I'm pretty sure that there will be no temple sealings of same gender couples any time in the near future, and likely won't happen at all. It would take quite a huge overturning of doctrinal understanding to effect any change in this aspect of Mormonism. It would take even more work to prepare the members for any such change. Such a monumental change is typically not how the Lord develops the church. Rather, it's here a little and there a little, line upon line. So if there were any such change, it probably wouldn't be some huge announcement. And I feel any such change is unlikely to begin with.
I think many of the pundits who challenge the current stand of church leaders on this issue are bringing with them assumptions about the Mormon culture that wildly distort their understanding. This may be particularly true among those disaffected, former members who have had unfortunate experiences with members or leaders in the past.
It's so very hard to recognize our assumptions, let alone to account for them.