Which, tbf, the US and UK already have to some degree.

But there is a big difference between the U.K. and America here; in the U.K. if you lose a litigation, you have to pay your opponents legal bills. In America the cases where the loser must pay are very limited with high bars to clear. This means that it’s absolutely possible to bankrupt someone in America with frivolous lawsuits, so long as those lawsuits aren’t bad enough to trigger the limited exceptions.

If a lawyer, doctor, accountant, engineer, or any professional gives you bad or malicious advice, they expose themselves to liability for the results of it. If you want to present yourself as an expert on some topic and expect people to listen to you, put some skin in the game and stand behind what you say. If you can't do that, you shouldn't be advising people on anything.