Posted one, to my Mum. Hand delivered three, to neighbours. Got back:
One from Mum, posted (we live hundreds of miles apart)
Two from neighbours, one didn't respond, first time ever
One from a former friend who clearly set up a Christmas card mailing list 20 years ago and hasn't updated it since - the card comes in an envelope with a printed address label (fair enough) but the card itself has a printed greeting (i.e. they order them from a printer with the greeting already printed on) and not a single handwritten word anywhere on the card, no letter enclosed, nothing - I haven't seen or spoken to her for over 15 years and I have no idea what's happening in her life now (I'm not on Facebook). I haven't sent her a card for at least five years so she has no idea what's happening with us either. Odd. Must be a very expensive tradition to maintain, given the cost of stamps now!
Lowest number of cards ever. The tradition is on its way to dying out from a combination of all of the following, I'd imagine: people keeping in frequent touch using social media, texts, WhatsApp, so not bothered about having an annual catch up; price of stamps; dire state of postal service; cost of living crisis; younger generations growing up hardly ever needing to address envelopes and buy stamps, so finding the idea odd and offputting at Christmas; people moving around more so friends and family not always having their address as phone and email are the primary ways to contact them.