Lifestyle businesses, by definition, turn a profit.
I doubt the same can be said for Robinhood.
The difference being that margin investing by novice investors has already led to the worst economic collapse in history.
Many home buyers are novice investors. There was more to it than novice investors blowing up the real estate market due to misunderstanding margin.
Believe it or not, buying a very expensive home with poor understanding of the market and finance mostly through debt can be seen as analogous to un-collateralized leveraged investing....