Your argument is reasonable and well thought out, but I don’t think this could not be overcome. Eg people get sick every once in a while, and go on holidays, an

Your argument is reasonable and well thought out, but I don’t think this could not be overcome. Eg people get sick every once in a while, and go on holidays, and seminars etc., and offices have to deal with this one way or another. Look at it this way - office workers are now available max 40h per week, out of 168 available hours per week, so how big a difference can 8 hours less make? Dependents would eventually get used to this, just like they have to work around the fact that offices are mostly closed on weekends. I agree that shifts are often not possible.