Several Factors.

Price.

The cost difference between an EV and an ICE vehicle is still fairly large although narrowing.

Availability.

Not all car companies have an EV and the ones that do may not sell them in all 50 US States let alone the World.

Range Anxiety.

Most people “feel” they need the same range as their gas cars. If they felt the same way about their phones everyone would have a bulky battery case on their phone.

Styling. Most EV’s are subcompact cars with crappy interiors and either all or no modern options. You can either have the version with no cruise control or the one with 7 driver assistance functions.

Charging availability. Only Tesla cares about building a real charging infrastructure. Although most single family home dwellers don’t need to charge elsewhere there are more people who can’t charge at home. Again Tesla understands this.

Profit margins. There is far more to be made selling fully loaded SUV’s and pickup trucks. Just ask Ford.

The United States once again having elected a President that thinks fossil fuels are a badge of success. Figuratively having so much money we can afford to BURN it. Just like in the 1980’s when Ronald Reagan declared that solar panels were stupid in a Country with all the resources and money the US had. Maybe Tesla should build a kick ass Tesla Presidential Limo where its so good the Secret Service wants it.

And Trump wouldn’t have to ride in the same mundane and boring car Obama had. We made this just for you. And it’s special. You will be the first President to ever have one. Better yet, world leader to have one.

The five senses.

Hearing.

People love to hear the noise an engine makes, just search youtube for car sounds.

Sight and touch.

Most EV’s are ugly and use cheap materials.

Smell.

Many people like the smell of high octane fuel in the morning.

Taste.

Some people just don’t have any. Since I don’t think the sense of taste makes a difference i needed to make a homophone joke. 

And I think one of the biggest reasons. They have never driven one. If they had they would be not only cheering for their success but pushing for it as well.

If Tesla can get to the promised price of a $35k EV that is like the current Model 3 base but with the promised smaller battery pack sales will take off faster than one of Elon’s rockets.