The question isn't really about being rich or poor, it's about whether the money is for consumption or investment.

Poor people tend to borrow money for stuff they use. The "thing" is consumed but the debt remains, plus interest. This can easily add up and become really expensive.

Rich people tend to borrow money for investment. Their plan is for the investment to "survive" and even generate profit, which means they can "always" sell the investment to pay back the loan, and the profits continuously pay the interest. Investments of course don't always work out, but even so, rich people can "afford" to lose money.

A poor person could borrow money to pay for transportation, allowing them to get to work and thus make money. That would be an investment and "good" debt. For consumption you should consider if you can really afford it. Consider the things lifetime, could you save enough money to buy it during that time while paying all your bills? If you can (plus interest) you could buy it now and have it while you "save" towards it. Although, remember to always spend a little less than you make, so you'll have money to pay for the unexpected.