sounds like they need a "Daddy's Helper" in their home
I've cared for a child full time (50hrs/wk) for the DCD who was unemployed for almost 3 years (and yes, he was home...never looking for/applying for jobs). Even DCM knew DCB would be better off with me all those hours. Didn't bother me a bit - the only time it annoyed me was when DCB would get sick while in my care, and DCD would take up to NINETY minutes to pick his son up when he was only 15min away at home.
If it bothers you that much, then term. It probably doesn't help that you could physically *see* him at home doing nothing.