I mean the tech is still new as well as the point that SSJMarx mentioned. To add to the list of reasons to make expensive version of cars first:
- New tech is more expensive usually
- Not everyone has the budget to openly spend 20K plus on a new vehicle, which means lower demand
- Since not everyone will just buy a new car, companies need to make as much money per unit sold which means luxury cars make more sense
- additionally lowering demand is the fact that not everyone wants an EV or feels comfortable driving them (due to its different fueling method)
I do expect that over time manufactures will begin to release cheaper EVs over time that are aimed for average consumers.
The reason we stop China is not related to supply and demand so much as stopping companies that China has given unfair advantages to. If BYD was making cars without signifcant Chinese subsidies, then yes I would be bothered by these tariffs as well.