I dont know the source of his friends apparent other money or why his other expenses are allegedly low, TC should know better than me or anyone else. But the vast majority of people couldn't afford that, and I don't think most people would admit that they're spending unsustainably to others until it's too late.
If he's theoretically rich, then whatever, but I find it hard to believe based on my knowledge of whales.
It's entirely possible he lives frugally and budgets money for this.