I never liked 'Blair Witch;' my eyes mess up when people use cameras like in it. Perhaps Phoenix is right about whom the film affected. Half-connectedly, I remember watching a documentary about some kids who kidnapped a girl and pretended to want to kill her (she did not know that this was 'just' for their version of 'Blair Witch.') It got into a whole trial.
I saw that documentary - they didn't actually cite the blair witch project as their influence - the documentary was called 'the real blair witch' or something like that, but the kids were just fans of horror films in general. But blair witch isn't your average horror film - it's not cheesy or funny at all, as many of the horror films which appeal to younger people are. and it doesn't rely on gore to be scary, and the characters (SPOILER!!
) don't survive to the end of the film, which I think is nice.
So the fact that a handful of kids enjoyed horror films and decided to make their own has little to do with whether or not the blair Witch Project is for kids or not, I reckon.