Interesting thought.
Is Robinhood that common in the crypto world? I know they support it, but I would have guessed it was an “also” feature rather than a driver.
From FY21 10-K filing[1] p. 74, cryptocurrencies represented 23% of total net revenues, or 29.9% of total transaction-based revenues.
[1] https://www.sec.gov/Archives/edgar/data/1783879/000178387922...