My driving instructor did this, (In Corsica, mind you.) on my first two attempts. It put me off because I felt like there were two of them there judging me.
I told him not to go with me on the third attempt and passed. It depends very much on the individual, the driving instructor and the general dynamic.
If your daughter feels like it will help her, then she should go for it. If it is appropriate here are my semi obligatory driving test nightmare stories:
First test: Got sidetracked by the driving instructor and the examiner having a complicated discussion about how the examiner caught hepatitis from a mosquito bite on a caravan holiday in Brittany with his elderly parents and mucked up the parallel park.
Can you catch hepatitis from a mosquito bite in Brittany? Or did you catch hepatitis on a completely different sort of holiday, perhaps in the Far East where "Love you longtimes" does not equate to a mother's love."
Second test: Got the same jam factory outing of an examiner and the instructor sat in the back again. This time I tried just to drown out whatever they were saying but failed because I didn't do an exaggerated head gesture towards the gendarmerie to see if they were planning a high speed chase.
Third time lucky! Against all odds! The driving instructor changed his car a few nights before the test and about six of us had to stand in the freeze cold and pitch black the night before the test to be shown where the indicators were, how to turn on the lights, this, that and the other. It was a Citroën and nothing like the Renault I'd been learning in. Much less powerful and just...different.
I didn't get Mosquito Bite Brittany Hepatitis Boy that day. I got a woman who seemed to be a bit of a biker and told me stories about how she'd been round Ireland on her motorbike and how the Irish were such wonderful people. I have an Irish surname but can't claim to be particularly Irish...anyway I went with it. I passed. The hill start and quick getaway on a blind bend onto the dual carriageway in the hills across a line of traffic did it I think.
I just relaxed. I said out loud, "Come on little car! Come on little car!" and swinged out into the road on the hill start/blind bend element.
Good luck to your daughter. We all get there in the end! Driving tests are horrible.
In summary, if she feels like it will help her, yes. If she wants to have a bit of a laugh/commiserate at/with me and my horror stories, I hope it cheers her up.