I remember that it was my chore to darn the socks when I was a kid and my mom taught me exactly this way as it is shown in today's Knitting Daily message. We had a darning egg in the form of a mushroom, called Stopfpilz. Here is an image of one that was similar to our old one. My mom had an array of darning yarns in all the sock colors from light brown to gray and black. So I think it must have been mostly my dad's socks that I had to darn. Darn it! Today I am so glad that I learned this early on. I am missing a "Stopfpilz" but I always find something that I can use instead, I do have darning yarns which I bought in Germany.
By the way, I also had the chore of polishing the shoes. We only had leather shoes in those days, no fabric shoes or sneakers or tennis shoes. I remember my first adidas in the early 70s and those I had to polish too with colorless shoe polish. And this is how it was done: Wipe shoe polish on the shoe with a soft cloth, not too much, then rub it in softly and then take the respective brush (light colored bristles for light colored leather and black bristles for dark colored leather). Wow, would my kids be willing to do this today? I think not.