I have spent 15 years as a climate policy analyst, so here is my truncated 2 cents.
The transportation sector is the biggest source of greenhouse gas emissions in the country and reducing vehicle miles traveled of gas-powered vehicles is the only way to reduce that source. Electric vehicle adoption is seen as the most effective path forward to achieving that goal.
California passed the Advanced Clean Cars II rule (in addition to Advanced Clean Trucks and Advanced Clean Fleets), which will only allow the sale of electric vehicles in the state from 2035 on. Maryland has already adopted the same rule and other blue states will follow suit.
The numbers as they exist today do not support widescale electric vehicle adoption, at least in Maryland. There are ~6.5 million registered vehicles in the state. 1.3% (~85,000) of those are electric vehicles. The overwhelming majority of those 85,000 are Tesla, meaning that your average person is not adopting electric vehicles, but rather people that can afford what amounts to a fancy toy.
To facilitate widescale adoption of electric vehicles, extensive new charging infrastructure will absolutely be required. This will be legislatively mandated one way or another, and unless electric vehicle costs drop, neither widescale adoption nor expansion of charging infrastructure will occur organically.