If AI makes effective price comparison and smart shopping easier, sellers will work hard to make it more difficult through schemes such as misleading prices with coupons and membership discounts.
All I've read indicates Robinhood was incredibly good for retail traders. Payment for order flow does not not harm the user, you get the same amount of shares at the same price, just from a different seller.
> Think of Robinhood and how they gave users more expensive trades because they were paid for routing flow.
That's the opposite of reality. Most trades are cheaper routed to a PFOF market maker because they know it's just retail trades. Uncorrelated "dumb money" that isn't going to be steamrolling them with a $10m sale.
Also that would be obviously illegal and the SEC would jump down their throat. Brokers must give clients best execution.
