Who sets the minimum for Forex Investment?  I believe we can trade on some brokers with just $100, that's not even the minimum as they said.

Learning to trade on Forex Market is easy to learn these days because of some tutorials found in the forums. I would rather spend that $500 to learn the trade than sending it to someone we don't know.  Wouldn't you agree to that? Its surprising to see someone will try to ask $500 from people without even telling who they are.