For example:
https://developer.apple.com/documentation/uikit/uinavigationcontroller/customizing_your_app_s_navigation_bar
As you can see here, switching to Objective-C does absolutely nothing. Is this the writing on the wall that they are going to completely give up on Objective-C?
from just reading articles and code sample, swift much faster and easier to write. i would still like to write objective c but feel swift easier to teach to new programmer.
if goal to have anyone become programmer and anyone can write iOS app submit to apple store then swift less intimidating than objective c. feel like right choice.