You need two hats. A work hat and family hat. This is the only possible social cue that will work in the long term.

I would completely expect my family to get behind this. I've worked remotely for many years now so my kids were (in theory) well trained to not bother me while I'm working. However, that started to get more lax post-covid. I also used to specifically work late at night and in the morning while they were at school. As they get older and stay up later, it has gotten more difficult to keep that schedule.

I recently moved my office to our third floor space. I'm hoping the extra work required to go up a flight of stairs will limit spontaneous interruptions during the day. I'm hopeful, but don't expect it to work long term.

Maybe I need hats...