I agree. You need to learn to draw if you want to deliver a good product. I bought a pencil drawing course recently and, although I have never drawn in my life, I am really learning some skills. It's a lot of fun
Start looking at as many different cartoon styles as you can. Pick one that resembles a style of drawing that you think you could do, and go from there. Start with emulating a style of drawing until you discover your own style.