There are plenty of rich people who are happy to keep everything in their own name, and just live with the risk. Most of those people turn out OK.
Some percentage make the news everyday as having "lost everything". Keeping everything together mean's it all stands and falls together. A bad decision in your business means the loss of your house.
So no, I'm not saying people who disagree with me are poor. I'm saying that rich people who disagree with me have a higher appetite for risk than I do. I'll work for 40 years, I'm not prepared to lose all that accumulation in year 39. Good structures remove that risk, which is something I'm happy to pay for.
Of course this hinges on your definition of rich. Perhaps you think a billion makes you rich. Or perhaps a million. Or perhaps 20k. It doesn't really matter. Whatever you have you can decide if you can afford to lose it all, or not.
Of course by the time you have a million you have a financial advisor, who will be advocating for the same risk reduction. Which is why this approach may seem tainted to you. I'll never have a million, which is why I'm not going to risk what I do accumulate, losing it would be painful.