That's a great point. First of all: Inflation is about 3% per year, which means money loses 3% of value in one year, and a whopping nearly 30% of value in ten years. letting money sit in the bank is fucking retarded. Second: The only way to really fight inflation is in fact to invest money in various ways. Gold, Stocks/Bonds, IRA, Crypto, etc.
Not to mention, when his stream and paypig income dries up, he'll be sorry. Then he has to try to get a real job with no work history and a bunch of embarrassing shit about him online.