Agree — people should do what they want and have fun learning. Its just a suggestion that’s also colored by my own experience. I will argue that if you’re going for a job in data science it is a bit more of a serious suggestion since you need to be able to know how to answer statistical questions and understand your assumptions, and you really do need to understand Bayesian stats for that (nothing state of the art here, don’t worry if you don’t know what a PGM is, I just mean basics).