A real-life example
MVC is the SoC principle applied to OOP. The SoC principle is used a lot in real life. For example, if you build a new house, you usually assign different professionals to:
Install the plumbing and electricity
Paint the house
Another example is a restaurant. In a restaurant, the waiters receive orders and serve dishes to the customers, but the meals are cooked by the chefs [j.mp/somvc].