"In New South Wales, 24 were charged with deliberately setting bushfires since November 8
while South Australia has seen 10 arrest reports since September 1."
Some bushfires might arise naturally, some are set by arsonists. Psychologists have written papers on the particular and peculiar mindset of arsonists: their dysfunctional and compulsive behaviour is a real problem. If they set fire in bush areas during naturally-occurring dry season, their 'reach' is extended.
If alien trees are planted or an area of indigenous vegetation has been stripped by developers, land can be even more vulnerable to fire.
Even now, talk is that the Cape must rid its mountain forests of all European umbrella pines, Australian gum trees, Port Jackson bush and imported palm trees - and restore the original Cape Biome fire-adapted vegetation that's evolved over centuries to thrive in fiery conditions