Read the conversation of Todd and Natalie and answer the question. 

Todd: So, Natalie, you were saying that you are a foodie.

Natalie: I'm a huge foodie.

Todd: And you are now in Bangkok, and Bangkok is famous for its street stall food, but that's changing.

Natalie: It is, so this is probably 70% of the reason why I moved to Bangkok because of the street food. So, yeah, the street food scene is changing. It seems like they're trying to take the model that's similar to the hawker centers in Singapore, so the hawker centers is basically where all of the street food carts that used to be on the corner of a street - what we call in Thai a soi - they've been moved into one big center, so almost like a deli center. I think it's in an effort to keep things clean, and to just have a hub where you get all of your food. It's easier for tourists. So that's happening a lot. There are pockets of areas in Bangkok where you can still get amazing street food on the street. Particularly in the business districts, like Silom. I think they will struggle to get their street food vendors off the streets because it is so convenient for people. When they leave work, it's right near the elevated sky train that we talked about earlier. People can just grab some noodles ... it's under a dollar ... get their dinner. Or perhaps they get their food to take away and then they go home. And these places are always really busy. There's usually a line to get in one of these street food places. They have little seats, little plastic chairs outside, and little metal tables, so you can eat there, but it is on the street, so there are areas now where you can get amazing street food, but it's not on the street anymore. It's in one of these small hawker-like centers.

Todd: Yeah, that's too bad because I ate street food going way back to 25 years ago, when I first moved here, and it's just the best. I never got sick eating street food for all my years. It's always clean and safe, and one of the things I really like about the street stall vendors that people don't talk about is that they're always really nice, and I have a theory about this. The people that own the street stalls, often, that's their own small little business, so they're the one that's in control of it, and I think mentally, they're just happier people.

taken from http://www.ello.org

Question: What does Natalie say about street food?