Originally Posted by
JandM
That's the point. When the student and visitor's visas are issued in the special circumstances of being linked to a parent's work visa, they are given validity for the same length of time. If, later on, you renew or change your work visa, you will also need to renew or change the three others that depend on it. Of course, you may move on to apply for Residence under SMC, and in that case, the rest of the family will all be able to be secondary applicants on your application.
Thanks for your answers! My idea was to apply for the SMC as well