Essentially this is the unknown problem
On other forums I see a lot of posts about married people struggling with the issue of fancying other people, yet quite a number of people tell them to go for it if they are unhappy. Nobody seems to speak out for the values marriage is supposed to represent (like not shagging anyone you feel like).
To a kid, a marriage is a man and a woman and that's an easily understandable unit, they really have to be a bit older to understand that Bill and Ben share a bed.
It just seems like a pointless complication for what one group thinks is sacrosanct and the other group probably thinks is just a legal bit of paper.
LGBT groups aren't identifying with the religious implications, so why do they want the ceremony to sound the same?
Civil partnerships are the same thing, so I'd have to ask what was so awful about those.
Next step Polygamy?
You know marriage wasn't always a religious ceremony?
It's simply about culture and i suspect that's why its an issue to some.