How hard is it to move from mobile development to AI?

Question

Android

Hello, I am faced with a choice of two areas of programming: mobile development for ANDROID and Machine Learning. I have a general idea of ​​the areas of application of these specialties. As well as modest knowledge in programming (dynamic, OOP, AiSD in C ++).
In general, I can’t decide in any way, respectively, I’m interested in how problematic it is to move from one to another. For ML, there is a mat base of a good Russian technical university.