People need loans (bank loans atm) to live. To buy a car, a house, school, etc. Our society only works with loans.
So, if bitcoin becomes HUGE, how will the bitcoin loans work?
Bitcoin loan system already exists check btcjam.com and other btc loan networks to see how they work.
You should be careful about btcjam.com. There many people are saying even A+ rated members are scamming