Whenever a walk starts you will find the walkers avoiding puddles and mud.
As the terrain increases in puddles and mud that are unavoidable you will find the hiker accepts that footwear will be getting wet and muddy.
As the walker's footwear becomes soaked and caked in mud the walker will only avoid terrain that is likely to worsen the muddy or wet state of the boots or shoes.
This is of course unless the person concerned is a child, for they are completely oblivious and simply don't care about the state of clothing or footwear. As witness Ethan, waiting on a rock after discovering that the mud he was stepping on, was as deep as his knee, and he was more stepping into, rather than onto, the mud.