Train you for three months, and then when you take the exam, you fail, brother. It's true, you can't get a penny back from your training fee. Now there are many kinds of pseudo-training, such as air ground handling, high salaries abroad, and so on.

There are formal seamen's schools in China, but there are few. Generally, it takes two to three years to recruit people from schools. Private boats may be recruited by acquaintances and intermediaries, but large ships and ocean-going seafarers cannot go back decades.