I like writing Go, and it's my go to (pun intended) for writing web API's. Building a framework around it for Android apps would be a mighty task. Kotlin makes more sense considering it's connection with the JVM.
I'll keep writing Java to build Android apps though. I'm sure it's "more fun" or whatever, but Java's worked just fine for me thus far. I'm used to the verbosity, and have no desire to start from scratch with another language. If some huge benefits were presented, I would. But, I'm failing to see any.
