A superclass should be replaceable with objects of its subclasses without affecting the correctness of the program.

A subclass can stand in for its parent class.

This makes the code more maintanable and scalable.

References

• https://www.youtube.com/watch?v=gV4P-fewa9M
• https://stackoverflow.com/questions/66551300/better-design-in-order-to-avoid-violating-liskov-substitution-principle