oh, I know so many people scared of kotlin (of changes in general) and I can even understand. sometimes I think we forget that coding is a job, we might have fun but there are people that just do it to have a salary. from a company point of view, I can understand restrictions, it makes hiring easier. atm, kotlin is not yet that popular, and while it might be true the average kotlin developer is better than the average java developer, it is also true in a company not everybody needs to be a first violin (lot of time I find myself in some boring maintenance stuff that honestly does not require big skills)
I remember numbers I saw some years ago, a scala developer was 50% expensive than a java developer, why as a company would you want that if the same job can be done with java?
hope you get what I mean