It must be useful. No doubt, just see how much you can learn. If you sign up for the training, it is also an investment in yourself. Nowadays, with the rapid development of industrial technology, many people have to change their traditional thinking. Whether it is entry-level or advanced, choosing training is undoubtedly an efficient and convenient way on the road of personal development. As for many people, is it useful? I think the first question is whether to learn, and the second question is what to learn and how to learn. I have been engaged in PLC and robotics for many years, and I am still receiving training. I also signed up for a forensic training camp, with the purpose of checking for leaks and filling gaps. In addition, I have an official approval, which is beneficial to my development in the next few years.