Maybe it’s because I know both languages but is that really a big issue for people? The interop is great, and kotlin is very readable, so the cost of context switching between the two is miniscule.
Some people have an extreme aversion to learning new things though. I feel that holding yourself to the standards and limits of your lowest performers isn’t a great thing.
How about violent felonies? In amerikkka its a felony to be black in certain areas.