I was in Copenhagen earlier this year and the most striking thing about visiting was how many people there were with young kids pushing prams around. Would need to examine the statistics to see if this is actually true but I wonder if the fertility rate is higher due to a better social policies / financial support for families.
Edit: Have just looked at the rates on the wikipedia demography page for each country. It's higher in the UK 1.61 vs 1.55. Maybe the visible difference is due the amount of maternity/paternity leave being offered by employers.
Isn't pram, stroller and buggy like a rich-people thing? I've yet to see one in real life in my country - although I've seem them in movies and animations.
Prams can be quite expensive, like £1000 for some models in the UK. I think cheaper models can be 10-15% of that price though and they are pretty essential for having young kids.
Presumably the social security in a Scandinavian country would be enough to let any parent buy one. Probably the same in the UK although our benefits system is much more stringent.