Most ICE cars can do 500-600 on a tank and there are still plenty of petrol stations, so filling stations will still exist but in fewer numbers mostly peppered along the sides of motorways. Although many can charge at home lots will just fill up at an ultra fast charging point five minutes, done.
Charging at home, or to be more accurate, connected at home, will be needed. V2G is essential to make the move to zero emissions work. Taking some electricity from most car batteries at various times of the day will help the grid at peak demand and with the move away from gas heating to electric this will be a vital piece of the jigsaw.