Didn't get the "A european resident has their first kiss" though. Wouldn't it make more sense to divide the frequency by two and state "Two european residents have their first kiss"?
It very well may only be one of the participants' first kiss.
Or one participant may not be European.
roma1n said "Two european residents have their first kiss", not "Two european residents each have their first kiss". It would definitely be their first kiss. Do I win pedant fight? :)