That's good. You will up the ante with low cost. But OTA does have a good platform. And perhaps Steemit has a following of gamers who could set up a play and trade platform. I found it easy to learn when I wasn't sweating profits. But in a few weeks from the start, I would parallel trade my real money alongside the game to be able to see the right times to buy and sell, the strikes and learn to execute confidently. I got cocky on margin one day in late 2009 and got a phone call from the SEC - took a few years off. So it's good to explain risk involved, too. A good many teachers leave out the risks.