Spoken like someone who does not have a "second person" around while they are working from home.
Unless the "other people" (spouses/partners/parents/etc.) also work a from home job, they simply do not internalize that the work from home individual is "at work" in the same manner as if that individual were away in an office. And for some of them, no amount of explanation ever sinks in to fully internalize the fact that "when I'm working from home, I am not available to also solve all the problems you create for yourself throughout the day".
Most all of them, however, do actually pay attention to and understand the meaning of a "do not disturb" sign on the door.
Unless the "other people" (spouses/partners/parents/etc.) also work a from home job, they simply do not internalize that the work from home individual is "at work" in the same manner as if that individual were away in an office. And for some of them, no amount of explanation ever sinks in to fully internalize the fact that "when I'm working from home, I am not available to also solve all the problems you create for yourself throughout the day".
Most all of them, however, do actually pay attention to and understand the meaning of a "do not disturb" sign on the door.