Perhaps they remember or heard from their parents about going to GUM and there were lots of people to serve one but nothing on the shelves. Travelling is an acquired skill it has to be learned the dos and don'ts.
There is a new group of western backpackers on the road today that feel entitled beg in the streets or busk put very little back into the economy of the country they are in and expect others to support their travels.
http://www.dailymail.co.uk/news/article-4400790/Rise-Western-backpackers-begging-fund-trip.html
