The underlying conclusion that I have formed is that the move is summed up in Chas' title of this thread, and as such it's a good move and necessary, dates and other aspects aside, for the moment.
Clearly the change will have huge consequences on infrastructure, not least the inevitable process of decreasing the number of fossil fuel stations, because electric charging will be predominantly a "home" activity. That alone will have massive effects on the economy, not to mention tax revenue shifts to wherever, likely to put a massive tax burden on electricity generally. Will we have separate domestic power supplies, one taxed for domestic use and another taxed as road use (like the current red & white diesel scenario)? If so, how will that be policed and enforced? These are all questions unanswered as yet.
What will happen to other fossil fuel burning devices? Motorcycles have already been mentioned, but what about lawn mowers and garden equipment, scooters and the like? Electricity is not a viable alternative for all of these appliances, so where will we go for supplies of fuel for them, when the fuel stations have disappeaared? Many questions to be answered.
IMO, electrically powered vehicles is just another short-term stop-gap approach to transport, the next big announcement will be that electrically powered cars will be banned by the year 2200

. It seems inevitable.
Hydrogen is the way forward, that is if personal transport devices are viable at all, in the longer term future...