If im the lender its okay for me you barrow money I don't care if you use in gambling of what ever as long you have collateral 
because that is my business.
But im not a lender That t is not good the lender dont have care to the people barrowing money for gambling. It show the greediness in the money.
because that is my business.But im not a lender
That t is not good the lender dont have care to the people barrowing money for gambling. It show the greediness in the money.well, if gambler reach that situations to borrow to gamble, i would say even collateral also need to be careful. he may double spend his collateral or unable to pay back or run away etc.
As per your point of view is correct. But if borrower lost that bet means he also that collateral as well so he/she may be in deep trouble after the loss.