Thank you for the insight, however, I think that my question is somewhat different because I’m interested in the implementation choice rather than the language choice. To answer your question, I don’t think Android should switch to C/C++. Instead, I don’t understand why Android goes to such great lengths to avoid compiling whatever language is in use in advance. Naively from the outside looking in it appears this would greatly simplify the platform.
For example, I think it would be an improvement to use Java but compile the whole thing to a native image in the cloud and distribute the compiled binaries. We already have Java AOT capabilities in Android, therefore this appears to be technically feasible. Only one ISA is targeted officially. It’s not a great academic leap to think apps could be built off the phone instead to avoid the complex optimization problems.
I am ignoring Chromebooks a bit. I did not know that you could run Android apps on that platform and didn’t think to consider it because I didn’t see x86 listed on Wikipedia as an officially supported architecture.