@flh
Completely agree with you that co-pilots are more important to service provision than interns (let alone that co-pilot is a more safety-sensitive job than any internship). And I also agree that after all a widespread use of inexperienced p2f pilots might not only pose a safety but also an economic risk. However, it won't show up in any quarterly financial report, as long as no plane goes down, so why only make some profit with a small number when you can make a bigger profit with a bigger number?