I was looking into ICE and EV fires. Not much data out there, plus they don't know exact figures because those figures include arson. So how did the fires start? No data. Was is fuel related, electrical, a faulty part, the user tinkering with bits, arson, manufacturing fault etc..Exactly. Electricity has dangers. But we would be using gasoline powered subways if they were less than electricity.
Interesting read of fires -

Data Reveals The Worst UK Regions For EV Battery Fires In 2022/23
Following our five-year report in 2022, CE Safety are back with updated statistics regarding EV battery fires. We examined UK regions and vehicle types.
EV fires had a blip in 2021 (UK)