The cost to install an EV charging station can be as low as $500, but if it does cost more due to having to have your load center/breaker panel replaced, the US government has a 30% tax credit up to $1000 to offset the costs.
The Tesla Supercharger network is extensive [2], and continues to grow by the week; charging at one takes ~20-30 minutes. Other networks with less coverage are available for Teslas (with an adapter) and non-Teslas alike.
It does't hurt that jurisdictions continue to enact deadlines for combustion vehicle bans [3].
[1] https://insideevs.com/features/521424/tesla-model3-camry-hyb...
[2] https://supercharge.info/map
[3] https://en.wikipedia.org/wiki/Phase-out_of_fossil_fuel_vehic...
Doing the same math for most American states will punish the Tesla.
Surely the evidence is stronger for cost per mile and cost per year being lower for a Toyota than a Tesla over the whole lifetime of the vehicle.
It is possible infrastructure for gas will be reduced in 20 years, but I doubt it will be anything noticeable to almost all people with gas vehicles.
As of Mar 2019, percent of electric vehicles sold in US was at 1.8%. That means the majority of fossil fuel cars sold in 2019 will probably be around in some way in 20 years (cars generally last much longer these days).
https://www.eei.org/issuesandpolicy/electrictransportation/d...
If you are taking an 8 hour road trip , it's not a huge stretch to put an 45 min charging session (especially if only twice a year, you're out 90 mins).
A Tesla Model 3 base model in white with no options will cost $41K with destination charge and no self-driving. Upgrade to the long range model, any color other than white, and get the self-driving package and you're looking at $60K. That same $60K could buy two Honda Insight hybrids which get 40-50mpg, and you'd still thousands left over. There are cheaper electric cars out there, but it's still tough to compete with economy gasoline cars or even economy hybrids like the Honda Insight.
Road trips are also a hurdle for many. If a family drives 8 hours to visit grandma twice a year but an electric car would require a long charging stop at sparse charging infrastructure, suddenly that gas powered vehicle looks a lot more attractive.