Whats up with all the women with tiny dogs?

[Mander]

When browsing profiles on Ukrainian dating sites I see that many girls have pictures of themselves with a tiny dog. Why are tiny dogs so popular with Ukrainian women?

[ML]

Tiny apartments with no private yards.

[Boethius]

There was a fad in the West to have tiny dogs as well, which is now passing.  I suspect that's the case in Ukraine.  Certain breeds have always been "in vogue", there, and then pass.
 
The apartment size/lack of private yards is mostly irrelevant.  I knew plenty of people with dogs who lived in those same tiny apartments, usually with 4 or 5 other people.  There are a lot of parks in Ukraine.