No individual or country can be self sufficient in this world self sufficiency is a myth. Borrowing is not wrong or a sign that the country or individual is doing bad with management, You can borrow to increase efficiency.
If as an individual or country you want to borrow you've to do so for the right purpose. It is when borrowing for the wrong purposes that makes borrowing go wrong.
You can borrow to fund or raise a business, get profit and repay the loan with the interest at ease. It is in the opposite that it gets messy borrowing.
Not all individuals or countries can withstand the pressure of taking out a loan for a specific purpose because loans in any form always bring pressure, especially the pressure to repay on time. While loans for more prudent purposes, such as starting a business and turning capital into profits, are certainly good and absolutely not wrong for anyone, before taking out such a loan, it's a good idea to research your own business to see if it's truly running and well-known in the community. Because a new, unknown business will certainly struggle to achieve immediate profits, as the owner will need to spend more time promoting their business to build a larger and more widely recognized brand.
Therefore, every borrower should consider this before hastily taking out a loan without carefully considering their own plans. Self-sufficient individuals and countries clearly exist in this world. If they didn't exist, where would small-capital businesses get loans? These loans are always issued by wealthy individuals or countries that are already financially self-sufficient.