Why don't we change the debt to income shares? Make enough of x money pay a percent every month. Seems like it would be at least be more fair for those that don

Why don't we change the debt to income shares? Make enough of x money pay a percent every month. Seems like it would be at least be more fair for those that don't make enough to pay their bills easily. It's debt without the interest and stress. Honestly though with private loans and complicated debts I'm sure that would be complicated to pull off completely.