Don’t think any UK Government in our lifetimes would dare to finish up the ICE in its entirety. Too many votes would be at stake 😀
I'm sure you're right. ICE cars will never be outlawed, the pressures to change will be entirely social and financial. The rich will always be able to afford them, and the enthusiasts will always be able to do a few hundred miles a year in them.
As others have pointed out already, they will become like horses or traction engines: still available, still used, and the subject of special interest gatherings. Just don't expect to see many on your commute to work.
The world is going to change an awful lot in the next 15 years, one way or the other.
