I come from middle class family from non-first-world country. I have dream to visit many countries and places.
I have seen many people travelling across the world visiting new places. I have an itch in my mind doubting whether this is privelege for richer people in richer countries.
Depending on your passport's strength you may get visa on entry, have to apply for a visa, or can't go to a specific country at all.
[0] https://www.passportindex.org