It's not a matter of time. It's more about development and understanding the need for companies to commercialize new products as soon as possible because R&D costs and commercialization delays are extremely costly. Therefore products needing massive development are generally offered to the public before they are optimized. Otherwise, the products would never be produced and/or the company will go out of business. Anyone who bought Windows PCs in the 1990s knows this. Anyone who bought 0.5 megapixel cameras for $600 in the past from H-P knows this.
As car companies keep talking about different chemistries for batteries and coming out with newer motors and inverters every couple of years it should be known that "they are not there yet". The fact that there has been no charging connector standard for the US market up until now tells you something. The industry and/or the government has not provided an adequate charging infrastructure. All signs that that point to early stages of development.
This is why I remain amazed that so many folks are disappointed, angry, or wanting to sue because the EV experience is not what they expected. Being first on the block to adopt the newest thing generally does not go well or a few years later they "could kick themselves " for jumping in so soon and should have waited because they purchased the obsolete model/technology and/or paid way too much for it. One way or another, early adopters pay whether it is with too high a price tag or with less than optimal experiences.
When the development stabilizes, the prices drop and the product is more widely accepted by the buying public, you might consider it no longer leading edge ( bleeding edge) technology.
Look at smartphones today. Suppliers struggle to come out with new features that really make a difference any more. Despite that they can still be quite expensive ( mostly branding issue)
Fore example, flat screen TVs are now the standard and are relatively cheap today. No longer new.
It's not a matter of time but you will know it when you see it. As usual, Toyota lets the others make all of the development mistakes and when the dust clears, they move in. When Toyota offers 10 EV models and the mainstream buyers are buying them, you know it is no longer exotic or "new tech".
My engineering education combined with my business management experience drives me to generally make cautious moves. I have often been accused of being anti-EV on these forums but actually I have prepared my home for EV charging to bring an EV into our garage. But the current situation is such that VW suddenly cancels the ID.7 coming to the US. I was actually interested in that car. VW keeps making improvements to the ID.4. VW will or will not move to NACS or when?
It has also been obvious to me that after the early adopters and enthusiasts got their EVs that market penetration would slow ( yes, folks, it will grow faster again). I was surprised, however, to read that many of those who moved to EVs ( with actual experience) are moving back to ICEs.
All signs that this is still very early in the development of the EV market.
This is just my attempt to provide you with an answer, if a bit long. I am sure there are far better examples.
Caveat emptor.
