DH spent yesterday helping DSD to move furniture round in her room including drawers etc that haven't been moved in 3years. They didn't bother hoovering under anything while they had the chance and so hard to reach corners remain caked in dust. For context I am the only one who vacuums her room approximately once every month (she is 17 but there is no expectation that she does it herself!) I do my best but am not moving furniture around. He doesn't seem to think it's important at all. Am I unreasonable to care about this? It would have taken 5 mins and now might have to wait another few years.