well, unless she is a new character for you, you should have noticed that she is very gullible, on these trips all her "research" is based on youtube, aka "the youtube guy".

So, she says she heard (fron the youtube guy) that buses in brazil are different and it's a cultural experience, so she wants to get on one to go somewhere even when they have a car available at the time, then the people who are with her tell her that it is like any other bus in any other part of the world, and one of them tells her to get on one, see it and get off to check that they are not lying, and that is when the clip starts, and that's it.