It depends on how you understand the college entrance examination training. Simple can be summarized as: further education planning and cultural course training. The family you are talking about is the former, making plans for students' further studies, such as choosing courses in senior two, comprehensive evaluation and filling in volunteers.
Comprehensive evaluation is actually a new scheme for further education. It does not take the college entrance examination results as the only indicator, but also depends on the usual grades and college interviews. Every school is different and complicated. You can go to the field and ask if it is necessary to do it.