depends on the course, if its a data structure course then its fine to do the linked list and dynamic array, but forcing your students to do them again and again in later courses will not make them very productive, they also might not enjoy the experience too much.

This could happen for example if the data structure course was in python or java and later courses are in C.

Also you can do the darn list in many ways: single linked list, double, ring, with counter/without counter. All very important in this day and age when you should know to avoid them altogether because linked lists fucks up cache behavior.