How to run Update() from an abstract class?

I have an abstract class that checks if a Structure is being built. It works if I run it from the child class but when when it’s in the parent class, the debug wont even print anything. Any ways to fix it?

    protected void UnderConstruction()
    {
        int n = 0;
        Debug.Log("Under Construction");

        if (builders[buildingConstructor - 1] == null)                  //Check if builders array is full
        {
            foreach (Thinbloods worker in PopulationManager.peasants)
            {
                if (builders[buildingConstructor - 1] != null)         //Break for loop if builders array is full
                {
                    break;
                }

                if (!worker.IsWorking())
                {
                    builders[n] = worker;
                }

                Debug.Log(builders.Length + "******");
            }
        }
    }
    
    void Update()
    {
        Debug.Log("@@@");
        if (isBeingConstructed)
        {
            UnderConstruction();
            isBeingConstructed = false;
        }
    }

If you are overriding Update then the child classes function will completely replace the parent class function. You can still call the parent class Update function manually with base.Update();

If this isn’t the problem then can you give more information about your class structure and what object you’re calling the function on?