Agreed. When working from home I have to keep half a brain dedicated to what is happening around me at home. I typically get at most 90-120 seconds between interruptions of some kind from my family. You can't easily shut that out.
I guess having really small kids (babies and toddlers really) is the "issue" here, but I can't imagine it being much better until they are physically at school... but at that point you may as well just go to the office