Think Out of The Box!
Asking why would people lend their money if they could not charge interest is like looking at a defenseless, skinny donkey tied up to a rickety old wagon and asking why would his big fat nasty owner feed him if he doesn't pull the wagon!
Ask the WRONG question and you'll get the WRONG answer!
Try asking why is the donkey tied up? And why does the big fat nasty man hold the reins?
Similarly, try asking why does our government BORROW money? why are WE stuck with the bill? And why do bankers control our money supply?!!
The truth will set you free!