Hello,
A channel five documentary asked that question.
Coventry, the one time centre of motorcar development.
In home, occasionally we may have experienced an electrical device that starts to smell hot, so we pull the plug out.
A battery is its own power source, integral to the vehicle, so that first line of action isn't there.
Parliament has already barred electric cars from being parked in the under parliament car park.
So, you decide not to have an electric vehicle, but your neighbour has one, parked outside being charged overnight. There's one, in our cul-de-sac just a few doors from me.
Any opinions?
This cargo ship sank carrying EVs. The vessel sank, as have others.

My mind is centred not on the vehicle catching fire. It's that we don't appear to have the technology to deal with EV fires.