Or they can be like a few notables who inherited some, then refused to pay the bills, played the bankruptcy courts and bullied competitors for a lot moreIt depends on how they got to be millionaires. If they had to earn it through sound business deals and investments then they have the know-how to handle money wisely.
If they got their money like Trudeau did, the haven't a clue. It's all taken care of by the 'Trust Fund' managers. It's doubtfyl if JT ever in his life had to know or care how much he spent.