Don't want to draw too long a bow Db but maybe a good idea for your mother to speak with a therapist? Mother guilt is a powerful thing. I know this from my own experience. Experience of others.
If not therapist maybe AlAnon? Support similar to AA, but focussed on the family of people with problem. We also have a "Family and Friends" forum here. If not your mother, maybe you'll find it useful?
I hope your mother retires to the mid west free from the constraints òf motherhood. Except for the good bits.
