At this moment we are witnessing the comeback of international travelling, after the sudden pause during the hight of COVID-19 spreads. Following the rise of flight prices during the pandemic, costs were immediately in a constant drop right after the restriction was lifted. This recent decrease picks up the general flying trend in the last couple of years, in which it also means taking a trip abroad is getting more affordable and convinient than ever before. Such ease in going around the globe has always been helpful not only for tourists, but also for businessmen, family members separated by the state borders, and international students. Contrary to popular perception, however, this increase of the international flow of people may likely to bring problems to local communities. We will now investigate this contrasting points further.