That depends on how you think about problems, I think. I understand OOP, and have written OOP code for two decades, using languages like Java, C#, Ruby, C++, etc. However, OOP never felt like a natural way to think to me. The first time I worked with a functional programming was an amazing experience, since FP works in exactly the same way I think. I'm not knocking OOP. I think it is great. It just doesn't fit as well with the way I puzzle through problems. Good thing we have options, I suppose.