"My son is working himself to death in banking. Should I blow the whistle on his boss?"

NO! It's understandable you're concerned about your son, and should encourage him to separate from his employer if you think it's necessary, but DO NOT approach his employer and speak on your son's behalf. If you did, the employer would assess your son as unable to make "adult" decisions on his own, and his separation from his employer would be involuntary.

Further, I understand you want to emphasize the crazy hours, etc. but don't make the comment that he leaves the office at 9 a.m., goes home, takes a shower and changes, and is back at the office at 9 a.m. That's impossible.

My mom had the same concerns when I was starting out in Banking/Trading. That was back in early 2000s. She spoke to me about it. I told her: "Mom, we grew up and survived civil war in Lebanon, had to find my way alone to Canada, figure out how to put together tuition, and then fight tooth and nail to get a job placement competing with every other resident and applicant. And then when I got a job, I had to compete with the best of the best, from Top tier universities, and a much better network. I have to beat them now, to win later."

She got my point. She said: Do what you need to do to get to where you want to be.

My point to you is: maybe he's competing with people like me?

Or, maybe he's sharpening his skills in areas he's weak in?

Or, maybe something is distracting him?

Or, maybe yes, his boss is abusive, but you need to answer the above first and see how the rest of his colleagues are doing..

Then, you can see what's the best way forward.

Good luck to you both.

You should do what you think is best for your son. But remember he is an adult. Also recognise that what are you whistle blowing ? There are million others jobs where people sweat harder and remain poor (think of factory workers, sweat shops etc). The job your son is in is one of the highest paid blue collar corporate jobs in the world for very little risk (the risk of just being on the desk in a community where others around him are in the same position). It will also open up really good career opportunities. However, NONE OF THIS IS AN EXCUSE TO HARM YOUR HEALTH or DO SOMETHING YOU DON’T LIKE. FULLSTOP especially if you have the financial privilege to make an alternative choice. Most people who survive IB are either motivated with career prospects or really like working in finance. I would suggest speak to your son and truly find out what his interest and motivation is. Sure whistle-blow, but perhaps that might not have an immediate impact on your son, it definitely is another small step forward for organisations to become better workplaces for future generations.