At its philosophical core, Bitcoin goes against tradition finances and lending as we know it. Also considering its anonymity and lack of central control, it may be a questionable medium to lend money to a third party.
Foreign currency has been around a long time in human history, considering that there are always discrepancies between two currencies. Now that the market is super consolidated with digital trading, people can make big bucks by strategically trading currency pairs.
Pretty much everyone is wanting an internet-based business due to lower overhead (usually), location independence or grabbing onto the dream of being the next Mark Zuckerberg or Mark Cuban. Of course, since the internet is an enigmatic beast to tackle, many of us just give up on our business ideas for a more traditional lifestyle.