Similarly, I'm all for drinking alcohol yet wouldn't cheer for an innovation that would make people drink more.
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That being said, I think that RH (and many other platforms) do in fact democratise investing (and that's great).
Many countries ban advertizing for cigarettes. So while it's not banned the cost on society and public health is large enough that it's worth restricting advertizing.
I realize that likely seems totally weird for US folks, but that's really not weird at all in Europe. Same as regulating advertizing targeting kids, etc.
On a large scale, eventually lots of people will be hurt. Everyone thought they were having lots of fun in 2007, and then people started jumping out of buildings. Those people had family and friends. Many of the young people in the market right now have never seen or gone through that, and if they keep preaching 'stocks only go up' while trading on 40x margin, they will eventually find out that stonks sometimes go down.
I get the desire to stop commercial banks from gambling YOUR savings. But why shouldn't you be able to gamble your own savings if you want to?