Their competitors aren't good enough. It's going to take them a while to catch up so yes, for the next decade, Tesla will have first-mover advantage. From what I can see in the market, Tesla and NIO are leading the charge, the rest of them should just file bankruptcy now.

With all this said, I am presuming what you have. If you tell me the car you drive, I can look at their stock and give you a more informed statement.