I wonder if this can highlight the need to get the focus on these paying for your job type schemes that need abolished from the industry worldwide.
The pressure of a cadetship/endo and associated debt, combined with the rigours of being an F/O in a LCC with the realisation that maybe flying isn't all it cracked up to be one can see how this may contribute to the onset of depression. Add to the fact other stressors in ones personal life stress we can easily see how some ill prepared young adults who thought they were walking into the golden life may be struggling with it all.
I stress none of the above reasons justifies any such behaviour that we have seen in France however do we really need added stressors to young adults entering the workforce.