Before this maddness goes too far their needs to be two matters considered:
What is work?
What is a positive work-life balance?
Stephen Hawkin works, but he is not going to get a job laying roads. The point being that anyone, suitably supported and with adaptions made, can work so long as their is a defined role that uses their available skill and ability. The government proposals pretend that the job-roles and the support structures exist.
In Jean's example, for instance, a computer based homeworking solution may be possible - but then that needs to fit a positive work-life balance, include the social positives from the working environment, and permit Jean the choice and options that others take for granted.
A people centred view is required, and a revision of the definition of work is long overdue.