Geez what a load of scaremongering tosh, I currently live in vibrant, beautiful, awesome Glenelg, I lived in London at the time of the 7/7 bombings, wherever you live there are always the risk of accidents, terrorism, natural disasters...it's called life. If you let the fear of any of these things affect your judgement then you may as well go and live as a hermit in a cave.
And as for Adelaide not being a cultural centre, I'm slightly baffled as to how you could ever say that!? Hilarious. There is just as much accessible culture here as in many European cities, also a lot more inclusive events for people of all ages and backgrounds, I guess that's why SA is the festival state.