How do people afford to travel so much?

Like anyone, I’d love to travel across the U.S and abroad. I actually just got my first passport, and there’s countless places I’d like to visit. Money is the main barrier, of course. I was raised in poverty but luckily am in the process of breaking cycles. Though I have friends from high school that post pics on Insta from some exotic foreign country like every other month. That isn’t even an exaggeration.

Do these people like, not work or something? Credit card debt? How can you afford to travel to 20 different states within a year? I’ve only visited like 14 in my entire life thusfar and I’m 24. Are there any hacks I’m somehow missing out on? Genuinely curious.