Back in the day, people used to ask about learning Swift without bothering about Objective-C because of the same reasons as yours. But? Swift is still controlle

Back in the day, people used to ask about learning Swift without bothering about Objective-C because of the same reasons as yours. But? Swift is still controlled by 90% of libraries written in Obj-C. So all of these frustrated had to learn itty bitty Obj-C. This is the story of almost every language and its evolution. So, you will be fine using Kotlin for problem solving even upto algorithms of Competitive Programming. But if you want to build real world use cases and projects, you will have to go through the Java Libraries and other ecosystems because nobody will rewrite them just because a new language came by with hype. That includes Android even though Google officially supports Kotlin. Ofcourse, Scala and clojure are exceptions.