Translation:Poor people do not go to restaurants.
Translation is not so mechanical a task as replacing a word/phrase in one language with its counterpart in another language. It is rather about getting the intended meaning across.
In English, “to go to a restaurant” means to go inside and dine, whereas “to go into a restaurant” would simply be about the action of entering the establishment. In talking about what poor people might not do, we are indeed talking about dining at restaurants. In reading the discussions here, it is interesting to learn that the same distinction is made in Hungarian between using “mennek” vs “bemennek “