It is for my parents and siblings, although I tend to do my own thing these days.
The usual script is my siblings, partners and kids all pile around to my parents' place on Xmas eve and fight over beds until about 11pm, but because copious amounts of alcohol are generally involved there's usually a full blown argument before it's settled. My mum then makes some
fleischsalat for the next day, and starts prepping the meat as we have beef and lamb, fowl (usually turkey, but depends on my mum's mood), and fish all on the same table. They then stick the presents under the tree and go to bed before 1am.
They'll then be woken up by some awful German Xmas music being belted out by my dad on the stereo about 6am (I'm half German) and him pretending to be Santa. It was kind of cool when the oldest kid was 6, but Santa doesn't really work now they're 14 and 11, and it's pretty embarrassing now. There's the usual shredding of Xmas paper before breakfast, which is more of a continental breakfast, but you can guarantee there'll be another argument between my sister and my brother over the blueberry bagels. Following that it's usually the construction of toys and inserting of batteries before the adults get stuck into alcohol - this is usually about 11am!
Some how my mum and sister manage to cook Xmas dinner without injuring themselves or anyone else - seriously anyway - or burning/undercooking anything. Food is served up about 3pm and the table is clear about 4, by which point everyone falls asleep for a few hours. About 8ish they'll have the evening meal which consists of leftovers salvaged from earlier and the fleischsalat. After this my sister's kids bunker up in their room and watch TV or play on consoles, and the adults start necking alcohol again and my sister and brother end up having another argument over something. My youngest brother tends to talk shop with my dad and my mum usually ends up flirting with my brother's boyfriend (usually what starts the argument between him and my sister).
Boxing day is usually spent with the adults nursing hangovers until dinner time, before having something to eat and opening more alcohol, so the evening is usually a repeat of Xmas night.
I'll occasionally go, but it depends on how recently I had my mum's homemade lasagne and coleslaw, as it's that I miss the most. My usual Xmas was spent alternating between one here (where I live when I'm working) and one with my (soon to be ex) wife, but this year I'm spending it with my minion (a kid who decided to adopt me as a father figure), loads of junk food, two Steam link boxes and my DJ console to piss the neighbours off. I'm at my parents' on NYE, but I've avoided it for the last few years and my mum has told me I'm contractually obliged to come this year. At least there'll be lasagne and coleslaw