I wear shoes. I know from my front hall (whatever is the correct word for room where people leave shoes, coats etc.) how much dirt shoes carry to the house. And from visiting people in the same building who don’t take their shoes off. I just can’t imagine why someone would choose to carry that dirt further into the house.

I just couldn’t get used to that. I like things neat.

almost always an unnoticeable amount of dust and dirt

I guess you’re used to that dirt and whatnot but for someone who leaves shoes in the front hall, it’s definitely not unnoticeable lol.