hehe, why are the teenagers always bored! why do the adults and babies always get to have fun? you totally captured the christmas moments. we might be continents apart, but it's fascinating how one can relate to that!
well, you asked for nitpicking details... first of all, you might have not noticed at all, but the first stanza is only three lines long! on purpose? if so, forgive me!
[...] That mix match with one another [...] ~ I'd cut out the "with", it's an extra syllable there, kinda throws off the beat of that stanza!
All in all, great job with the last stanza, i *love* the word "erased" for some weird reason (when it's not used in it's literal meaning).
you've got a good mind for capturing moments and describing them without much need for intrinsic details (which are great now and then, but some people--like me *cough*--overuse it sometimes, and it becomes draining to read).