People can actually live a debt free life, not everyone associates with lending or borrowing, some people will rather live without something rather than going to borrow but if you live abroad or in developed countries, you cannot fully live a debt free life coz their economy revolves around credit facilities.
Wherever you are in this world, you are going to need money for survival, and the delusion of developed countries people are richer is common in other countries but the reality is the exact opposite of it. Even the percentage of homeless people US is similar to some other poor countries.
A debt is a tool to make more money but people who uses it for wrong reasons get into the traps of monthly debt and can't able to spend where they want to.