"We don't need fire anymore," you're pretty funny.
Clearly you are not a camper, or if you are you're one of those who cannot envisage a camping experience that isn't bolstered by levels of technology that just 200 years ago would be indistinguishable from magic. Cell phones, electric lights, self-igniting stoves.
Some of us really like to leave all that crap behind. Get to where the cell phone doesn't work, where the light comes from the sun and cooking your food involves actual wood fires. Some of us, in fact, prefer that. To go camping your way is only one small step away from a motel room, and if we wanted that then we would be at a motel.
The vast majority of fires are caused by natural causes - lightning - or are set deliberately. Accidental fires are pretty darned uncommon in fact. The most recent accidental fire of note - the Camp Fire in California in 2018 - appears to have been caused not by fire at all, but by damaged power lines.
Those very same power lines are there to eliminate our need of fire for lighting and cooking.
Ironic, isn't it?
Fire is what you make of it. Used responsibly it is no more dangerous than electricity and, in some cases, demonstrably safer.