Compared to ICE cars, EV car fires are not that common. There are a couple of hundred people that die in ICE vehicle related fires and around 170000 cars that catch fire every year in the US. Check here for a breakdown of ways that can happen:
https://www.consumernotice.org/personal-injury/vehicle-safet...Here's a beautiful quote for you: "There are more than 19 vehicle fires every hour in the United States. They account for 1 in every 8 calls that fire departments respond to."
That puts the handful of burning EVs that catch the news once in a while a bit in perspective. It does happen but not that often. Even if you consider there are about 20x more ICE vehicles sold in the US, it's still quite a lot in comparison.
Anyway, lithium battery fires are comparatively slow so mostly people just get out of the vehicle. Basically, you stop the car, get out and call the firemen. Petrol tanks going boom is less common than Hollywood movies make it seem but still, they occasionally do blow up with people still inside the car. Not a good place to be when a few gallons of fuel is combusting. Hence a couple hundred casualties every year.