Boris your right, he should get out and people have told him that. Like you said most of us have gotten the same advice at some point in our aviation careers. And what did I do with that advice? I kept going even though I knew it. And now I've ended up at a 121 carrier about to furlough! hahaha... the sweet irony.
Its the "aviation-crack" he's hooked on. Each hit(instructor and aircraft) he/she takes is pricey, the high only last about 2 hours(including preflight/post flight) and it isn't getting any cheaper. Unfortunately, he won't be able to get off it until he hits rock bottom(ie, furlough, jobless, divorce, kids forget who mommy/daddy are, etc)! LOL.
Trust me I know, I'm a recovering aviation-addict