Are you sure you are in audit? Instead of selling your medicine, why don't you give proper advice to guide people on their career choice, and think about actual pros and cons of it. He is choosing audit with mid tier over other jobs.

SG based BB have not done mass layoff of local during covid. In addition, if you truly have a BB offer 10 years ago, you might not necessarily still be in IB now. Could in one of the buyside houses which have a good mix of some stability and pay. You would have enough money to get past a 6 month gap while looking for a new gig.

Let's not write too much stories here. I don't even think you are in audit, much less that you have chosen audit over IB.