Pace, now you are entering ridiculous territory - questioning a persons motives for wishing to fly?! That, as far as I am concerned, is none of my business. Do Threshers question customers motives when they purchase a bottle of bubbly? Of course not.
I am a flying instructor, not a psychiatrist.
Some instructors really do step outside their remit sometimes - I know of one who, not content with being a mere instructor, decided they were now a GP and told a student to lose weight before their flying lesson despite the fact the student held a class two medical and the C172 was more than capable of carrying their weight within limits!
Our job is to teach someone how to fly. Remember that.
I suggest we leave the persons motives, medical issues and perceived psychological issues to the AME's and just get on with our job. It's getting worse than the Jeremy Kyle show on here!
VFE.