I was talking to one of my BMs about creating an Instagram hashtag for my wedding, and she suggested that I ban cell phone pictures from the ceremony. "Imagine 20 years from now, you're looking through your wedding album, and everyone's holding up their cell phones during your ceremony." On one hand, I see why she would suggest that. On the other hand, I think it's poor etiquette to tell a bunch of grown adults to put their cell-phones down; I think I can trust most of my guests to be appropriate and use good judgement. If people want to take their own personal photos/post them on Instagram, I guess I feel honored that they would want to do that! Furthermore, I don't really think a presence of cell phones would "ruin" my pictures.
What do you all think? Is this an etiquette faux-pas? Are you allowing cell phone pictures during your ceremony?