I'm from Ukraine, but guess it doesn't make much difference with Russia in terms of attitude to child-free women. It is still strange and abnormal. Of course there are quite many women, who are alone and don't have children at your age, but it's rather their misery than a deliberate choice.

I have two adorable boys aged 5 and 1 and when I think back about our life with my wife before they were born, I become more and more confident that we could hardly be happier if we wouldn't have them. Despite all the difficulties of being parents (and believe me, we had to give much more care to our first child comparing to usual babies), I reckon they've brought that additional meaning to our lives that no one else on Earth could bring. You're talking about adventures, travelling, exploring new cultures, being ready to pack your stuff in an hour and go - well, yes that is definitely a strong argument in support of child free concept. But for me my children are the most extreme adventure and "terra incognita" I would never be tired of exploring.

Here is one of my favorite movie scenes, I guess it can tell the whole idea much better than I do.