Worm fences are neat, you don’t need post holes. Good for rocky soil, especially back when they didn’t have modern equipment to dig holes. And the back and forth shape makes it pretty stable. Brick walls like the picture below are snaked to use fewer bricks than you’d need to make a straight wall. Because a straight wall would need to be two bricks thick.
I had a 25yo ask me how old I was this weekend. I told them. They claimed surprise, didn’t think I was that old.
Hard to say if they were being kind, or if I actually look younger than I am. Not that I care an iota if I look young, old, or my age.