In five or ten years, there might not be any difference between trading stocks and trading crypto. The two asset classes are converging in ways we couldn’t have imagined just a few years ago. More than 9.5 million Robinhood customers traded crypto in the first quarter this year. Robinhood is most commonly known for giving everyday investors wider access to the stock market. On Robinhood (and Charles Schwab), investors don’t have to buy…