Sweden's rate of unwed mothers is higher (55% in 2003), but it's because many couples there choose to not get married.
It's true, in Europe, many people choose not to get married for ideological reasons. They just don't believe in the institution of marriage and let's face it, with religion losing ground in Europe, the moral push to get married just isn't there anymore. With more than half of all marriages ending in divorce, one could ask, why bother? Marriage just seem like an empty, meaningless promise with far more downside than upside potential. Quite frankly, I used to agree with that 100% (until I met Mrs. FIREdreamer that is