People who have been programming for a lot of year's, what's your opinion on Kotlin and Python?

Python being interpreted doesn't apply to my use case.

Kotlin looks nice, you target the JVM world (consuming Java packages/dependencies as well) without having to use that horribly verbose language that is Java. It also comes with a native / AOT option, capable of targeting multiple platforms; no idea how good it is, though, and how much it restricts your ability to consume Java packages.

I have been a PHP programmer, not tried these. You should choose the language depending on your purpose.

I love Python. I've never used or have any interest in Kotlin.

I like snakes!