I lived in Ireland in the mid-90s and I vaguely remember being told at the time that you could apply for a series of driving licenses and you were able to drive unacompanied on a provisional licence, seemingly forever.
Was just mulling over whether this could possibly have been true and it seems to have been the case:
"Prior to serious reforms in 2007, many people who drove never completed the process of receiving a full licence - 400,000 people held provisional licences in October 2007 when the new Learner Permit system was introduced. Serious crackdowns and a huge increase in testing facilities have brought this number down heavily.
The reason for the high number of people driving under a Provisional Licence under the old system was because a Provisional Licence holder could drive unaccompanied after obtaining their second Provisional Licence, and many drivers chose this route rather than going through the full testing process. This is system was very unusual - Most countries' provisional/learner licences require a fully qualified driver to accompany a learner."
I wonder if the mother in this scenario even had a valid driving licence.
I'm not buying any of the PND/overtired suggestions, personally, just strikes me that she was a stupid person who made a stupid decision (I formed that view before I heard of her ethnic bakground, before anyone starts..)
Though, while we're on the sugject, I remember arguing with a poster on here probably about 6 years ago because she said it was absolutely fine to take her baby DS out of the car seat on the motorway to change his nappy as she was driving a 4 X 4 with all sorts of safety extras. She was also a stupid person.