Don't know about russia, but in my country plenty of people driving without a license or with a suspended one. Also, no limit on how many times you can take the written exam, so someone maybe had to take it ten times, got lucky with the questions or memorised all intersections and passed. The more academic folk ace the written exam, but then struggle with the driving part. And when you fail the driving part, you don't need to revisit the quiz portion, just the driving. Someone who passed their driving test after 5-6 attempts rarely tends to be a good driver.