Dutch, German and English are very similar, so is it meaningless to learn Dutch?

I just learned Dutch ... Our teacher once graduated from a university in Belgium. Knowing Dutch, he got a lot of preferential treatment when he worked in Belgium and Holland. He is given priority in restaurants or bars, and his salary is relatively high. After he returned to China, many household units looked for him, most of them were study agents and schools. Now he teaches Dutch in the training college of Beijing Foreign Studies University ... If he wants to work in Europe in the future, Dutch is still very useful. In short, the benefits of learning Dutch are similar to those of learning other small languages. Why it must be Dutch instead of German depends on your personal plan for the future. Dutch agricultural technology (technical level) and business (all its business schools rank among the top in the world 100) are very famous internationally. Famous things ... as we all know ... tulips, wooden shoes, windmills, and ... Huygens ... Van Gogh ... Besides, I will speak Dutch to you. Maybe you already know that South African is a language. Basically, from 1652 to 1705, the indentured workers and slave houses brought to South Africa by Protestant European immigrants and the Dutch East India Company developed. Most of these European immigrants are Dutch immigrants, but there are also many immigrants from Germany and France. In addition, there are some immigrants from Scotland and other European countries. As for these indentured laborers and slaves, in addition to Malays from Indonesia, there are also Khoikhoi and Bushme who are indigenous to Africa. So learning Dutch is promising. Trust me, study hard.