Kotlin is growing in usage. Not as fast on backend obviously because Java is still perfectly serviceable but it's still definitely growing.
The area Kotlin excels in isn't as a pure Java replacement to be used by Java devs but rather a JVM language palatable to the Python/Javascript/Ruby/Golang crowd. It's very very hard to convince such people that they should even try Java but Kotlin is much easier to at least get them to try and show them it's really not hard at all.
The area Kotlin excels in isn't as a pure Java replacement to be used by Java devs but rather a JVM language palatable to the Python/Javascript/Ruby/Golang crowd. It's very very hard to convince such people that they should even try Java but Kotlin is much easier to at least get them to try and show them it's really not hard at all.