Do you have concerns when working with the Kotlin language?

Concerns when working with Kotlin are usually related to some features of the language and ecosystem:

• Java Compatibility: Kotlin is fully compatible with Java, but there can sometimes be nuances when interacting with Java libraries, especially if they use outdated or non-standard constructs.

• Lazy Initialization and Null Safety: Kotlin offers powerful null handling mechanisms, but improper use can lead to unexpected errors.

• Complexity of certain constructs: for example, coroutines require understanding asynchronous programming and can be challenging for beginners.

• Tools and ecosystem: although Kotlin is rapidly developing, some libraries or tools may be less mature compared to Java.

Overall, with proper study and practice, Kotlin becomes a convenient and safe language, reducing errors and increasing productivity.