OP, I'm 29. Had never been to a wedding until last year, and then it all kicked off -
Cousin (overseas, so £)
Friend 1
Friend 2 (I got to be a witness
)
Friend 3 (Overseas, tomorrow! Flying out tonight, more £. DP is best man)
Friend 4 has sent out "save the dates" for next May.
DP has now proposed, so I guess I need to add us to that list 
I should add, DP and I are not social butterflies / very small circle of friends. Wedding creep will reach you shortly, don't worry.
The fun-ness of the event varies but I have high hopes for the one tomorrow: two-day event, in Moscow (current temps: 0 - -5), with obligatory photoshoot for all guests at the major war memorials in the city, followed by a party with an "animator"/organiser and traditional "kidnapping the bride" activities 
Have never met the bride before. Don't speak more than 10 words of Russian. #help