Just the historical Russian ties, which is enough for some people/organizations to avoid them. The biggest practical reason is the dependence on tooling. Kotlin is a great language, but loses a lot of its allure when you can’t use an IDE for whatever reason. It makes sense, given that its developed by a company whose main product is IDEs; but it can still be an issue in some circumstances.
What Russian ties? JetBrains is a Czech company, with very little income from Russia. They suspended sales in Russia and Belarus in 2022. https://www.jetbrains.com/lp/annualreport-2022/
And please do list the practical reasons for avoiding Kotlin.
Just the historical Russian ties, which is enough for some people/organizations to avoid them. The biggest practical reason is the dependence on tooling. Kotlin is a great language, but loses a lot of its allure when you can’t use an IDE for whatever reason. It makes sense, given that its developed by a company whose main product is IDEs; but it can still be an issue in some circumstances.