The internal combustion engine has had 120 years of refinement to get design and manufacturing processes optimised for longevity at low cost - it still leaves much to be desired with servicing required every 10-20k, and multiple points of potential failure - bearings, gaskets, rings etc.
It needs a gearbox to cope with variable torque across the rev range and some form of "clutch" to isolate the drive from the wheels..
By contrast the EV has had a fraction of the high intensity R&D for battery, control systems and motors - there is probably significantly further to go and EV are already the equal or better than an ICE set up in most operating environments.
Even in the US ~80% of the population live in cities (UK ~85%) so this should not be a general barrier to EV ownership - although for some it will create challenges.
That the UK needs to improve both its green generating capacity and power distribution network is beyond doubt if EV ownership is to grow as anticipated, and gas heating replaced. This is a matter of intent rather than feasibility - with resolve it is entirely achievable within the next 20-30 years.
There is of course the possibility of fundamental changes to the current user owner model:
- autonomous pods (app based) negate the need for personal ownership. Vehicles could be operated up to (say) 20 hours a day (downtime for cleaning and recharging) vs currently owned averaging ~1 hour per day. Reduced congestion and parking needs.
- far better integrated rail and pod transport for longer journeys - or possibly charging on the move initially just on motorways.
- EV sharing - already happens in some larger cities. All these potentially reduce the costs and responsibilities associated with ownership.
Widespread adoption of EVs may even help the transition by operating as an energy store to feed back into the domestic need. A 60kw EV battery could typically provide domestic power for 2-4 days and certainly meet shorter term demand peaks.