I believe the instinct to develop a game engine or framework comes down from loving programming and being passionate about mastering a tool. We humans love mastering something and we love masters, when we build something from scratch we own it, we are master of it and we lead the decision. That's so comforting and pleasurable, and the reward we see at the end of the path motivates us. But on the process it's too hard.

Nowadays I have the urge to combine a physics engine, rendering engine, ecs engine to develop my own game which I guess I'll quit in the middle.

As developers I believe we should limit ourselves from doomcoding.