Answer:
Pre-vocational education in general aims to make students prepared for a specific vocation, but not in a technical manner. This education often relates to subjects such as time management, workplace ethics, personal financial management, etc.
In general, these subjects' curriculum is not expanded enough, meaning it does not grasp deeper into the specific subject. The reason for this is usually a little allocated time for class. Additionally, the structure of the curriculum is not adapted to the actual needs and educational habits of the students involved. Often, the curriculum becomes irrelevant due to non-timely updating, In order to be relevant for the current time, the curriculum needs to be constantly updated, according to leading technological trends.
The contradiction about a badly constructed curriculum is that it often demands moderate academic knowledge about a certain topic for students. For example, personal finance subjects may demand that a student recognizes key elements and concepts from economics and finance, which are actually academic subjects usually studied later on.