Although consolidation loans may work for some, it isn't a cure-all. For example, your income might not be enough to meet the monthly payment. Or your credit score is too low. Or you can't ensure that you'll be able to meet the fees for your new loan.
On the other hand, a consolidation loan may sometimes take more effort than just simple planning. For example, you have enough income to cover your current loans and their interest charges and fees, but you just don't know how to budget your money. Or your debt load is small enough to be payable within the next year. This is why it's important to organise all the information pertaining to your outstanding loans and calculate your current expenses.