Agree @kezo The 2030 date will change. No question, in spite of what the current government says, or we won’t have a car industry left.
Regardless of the cut off dates, it will be possible to buy ICE cars for decades to come. They just won’t be brand new ones, but the vast majority of private car drivers don’t buy new cars anyway. New cars sales are way down on pre Covid levels as people are keeping their ICE cars longer and longer. As I have said many times, you simply cannot force consumers to buy products that they don’t want or are impractical for their needs – a critical fact that governments and environmentalists fail to appreciate.