Because they feel they’re safer or cooler. Car companies are able to charge more for them so they’ve been pushing them in every way imaginable. Very weird that you didn’t know this.
A 2 seater Tesla would sell very well. Tesla would make it cool. There are already multiple companies that have recently made very cool designs for 2 seater EVs but failed due to bad leadership and running out of funding.
Unfortunately Elon is set on robotic Uber being the cheaper option.