Many runs after what is trending in the industry. The problem with that is trends will change frequently and we will become good at everything i.e nothing. The world needs all kind of experts, whether it is software tester, sweeper or trainer. So be good at what you do. In my twenties, I have this notion that English language is crucial and I spend time to improve my language skills. I am now good at speaking but I lost plenty of time which I could have used to improve my expertise in programming from good to great.
Recently I read a blog post on LinkedIn that shows the dangers of running after AI. Many academicians and amateur engineers are running after the current trend of AI. The truth is that our ego is deceive us. AI and machine learning are difficult subjects to learn. So there is a false belief that those who knows these subjects are brilliant and possess higher IQ.