I personally do. However, I haven't been coding for decades. I learned just for my startup and mainly deal with frontend with my co-founder on backend. Still, it wasn't necessary for me to create icons. It is nice to know though. Plus, I enjoy design. I would DL inkscape (unless you have adobe illustrator) and get svg files of icons you like. See how they have done it. Most icons are very simple shapes. I personally think they are more effective when bare and simple. Its as simple as just drawing and connecting lines. Smoothing edges. And most of it is actually fairly precise / logical and.less artistic (I.e. no need to learn to draw). With time you'll get better. And you can create cooler and more complex icons, logos, and so on.