Even with an abundance of suitable EVs at affordable prices, many millions  around the world will not be able to buy them because of local factors  that prevent convenient charging. And these are not just third world  infrastructure problems.  Certainly there will still be demand for ICE in 15 years.
Having just returned from a trip to  London, I was reminded that there are millions of homes in the UK that  have no garage and no driveway, where cars are  parked out front on the street. The councils will not allow extension  leads to run from houses across pedestrian path ways. My dad  wants a little EV for his retirement run about but cant buy one because  he is not allowed to charge it on his street. He may not get to see the  infrastructure changes he needs, the council have nothing in the  pipeline for his street.  London proposed phone repeaters through the underground train/tube system in ~2000. 18 years later and the underground is still a blackout zone. I'm just saying, the progress of change can be frustratingly slow.
The EV will be king of the driveway, so  much better than ICE - BUT for the quick transition we are hoping for we  need to improve energy storage way beyond lithium. The current scale of  lithium battery production is already causing significant environmental  issues, and it will get much worse if this resource hungry old battery  tech is packed into every new vehicle on the road.  Lithium  batteries are great for your remote control car, but it starts to get ridiculous  when you scale it up.
If we are going to allow the auto industry  to do a mass roll out with huge lithium battery packs, we should give proper scrutiny to the  environmental costs, and set acceptable standards for recycling. 
In  Australia I would like to see mandatory recycling of lithium batteries  to an acceptable standard, with huge fines for non-compliance. Currently  we recycle 2% of lithium batteries in this country. Those that are  recycled only salvage a small percentage of content, and much of the  waste is burnt off. Most of what is not sent to recycle ends up in  landfill, leaking into the ground. Surely we need to get this all in  order.
The spiralling environmental cost of our lithium battery addiction | WIRED UK
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