If he takes the loan from a commercial bank or from a legally registered loan firm, he will definitely have to repay the loan because if he doesn't, he will be charged for it and if there was any collateral for that loan, it will be liquidated and he will bear the consequences of his action. The only way he will not be disturbed for the loan is if he keeps repaying the accumulated interest and re-borrow the parent amount.
In terms of borrowing, it is necessary to think about its return, and it is very necessary if it is difficult to return it, you will no longer be able to get the loan you need, and not only that, maybe your name will be blacklisted by the bank or loan company, it is necessary to anticipate all of that before it actually happens.