I visit a country in Eastern Europe once a year. They do not have any coins at all in their currency
May I ask what country that is, does that country have Euro as currency?
Myself, living in a European country (Finland) that has the Euro as currency, find that hard to believe. We have a lot of use for coins for smaller purchases.
For example a small coke is about 2 euros, icecream cone 3 euros and so on.
The smallest bill is 5 Euro wich equals about 6.7 US dollars.