Fun Vampire Fact; the reason that Vampires traditionally cannot see their reflections in a mirror is because mirrors used to be backed with a reflective layer of silver — which, as the metal of purity, would not ‘interact’ with Vampires, who are the Devil’s work.
However, modern mirrors have used aluminum as their reflective backing for many years now — and aluminum is not a ‘picky’ metal at all. So Vampires are able to see their reflections in modern mirrors.
All I can think about is a vampire used to not seeing their reflection in mirrors for centuries, and one day they are just walking along and unknowingly pass a mirror backed with aluminum and THEY NEARLY SHIT THEMSELVES.
And film was exposed using silver in the emulsion fluid for old photographs. But with more advanced photographic technology and things like digital cameras theres no need to use silver in the printing process.
I can imagine old vampires being super into selfies because they never got to keep pictures of themselves before.