It's not that easy to just "create separation" - I can imagine that most people complaining about this have actual lived-in experience about trying to do that f

It's not that easy to just "create separation" - I can imagine that most people complaining about this have actual lived-in experience about trying to do that for multiple years now since the onset of Covid, and it doesn't work for everyone. "explain this separation to your family and ask them to respect it" implies either some wishful thinking or quite privileged assumptions about this being practically reasonable where you just need to discuss it to make it true. A part of a bedroom plus asking to be left alone (and people trying to do that) does not create a work environment that's even remotely comparable to an office. Again, do be reasonable and assume that everyone who has issues with it has tried all of what you suggested multiple times over the last years and has gotten to a solid conclusion that it doesn't work and the separation at home is not going to happen for their particular situation of family and housing. And if someone needs to work not from home but in an office away from home, most people can't simply afford a proper office if they're not using an employer-provided one.