This is one reason why people called "Love Never Dies" a collection of fanfic clichés that were already old back in the 1990s...
I think the reason for doing it is the feeling that it would be nice if Erik left some kind of descendant, and/or the feeling that Erik has 'first rights' over Christine (Raoul can always go on to father other children on her afterwards but Erik only gets a brief window of opportunity) and/or the feeling that this is a way for fans to have their cake and eat it with everyone united in one big happy family. And of course for the Kay-verse it's canon (which means this idea wasn't exactly new even back then!)
One of EMK81's fanfics attempts to subvert this by having Erik come up with a plan to get Raoul to father a child on Christine for him and then retain her underground as his 'wife' -- the idea being that this way Christine will get a pretty child as opposed to Erik's deformed offspring :-p Unfortunately Christine and Raoul don't realise what he is up to and then are horrified at the suggestion when they find out!
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branchandroot
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Date: 2017-10-21 10:06 pm (UTC)I think the reason for doing it is the feeling that it would be nice if Erik left some kind of descendant, and/or the feeling that Erik has 'first rights' over Christine (Raoul can always go on to father other children on her afterwards but Erik only gets a brief window of opportunity) and/or the feeling that this is a way for fans to have their cake and eat it with everyone united in one big happy family. And of course for the Kay-verse it's canon (which means this idea wasn't exactly new even back then!)
One of EMK81's fanfics attempts to subvert this by having Erik come up with a plan to get Raoul to father a child on Christine for him and then retain her underground as his 'wife' -- the idea being that this way Christine will get a pretty child as opposed to Erik's deformed offspring :-p Unfortunately Christine and Raoul don't realise what he is up to and then are horrified at the suggestion when they find out!