An outside entrance directly to the laundry room is the bees-knees to someone who gets dirty outside.
Side note: are bees knees really that awesome. I’ve never seen them, have you? Why are they the descriptor of something great?
Anyway, you can slide into the mudroom and put your dirty clothes directly in the washing machine. In this case the walk-in closet is directly attached for your fresh set of clothes!
Or you can also use the door to bring wet laundry out to dry on the line.