The wording on Christmas cards

I make my cards and for anyone bereaved I put Thinking of You at this Time , I never use Merry , but prefer Happy

ElderlyPerson, sites such as moonpig or funky pigeon allow you to choose your own greeting on a good choice of cards

That’s interesting Maw, I do enjoy your little snippets of knowledge.

I would disagree with your basic premise- I have bought cards with all sorts of greetings- Merry Christmas being only one.
Seasons Greetings seems to be the most common and nobody can take exception to that.
But of course you will know the origin of the word “merry” ?
Merry", derived from the Old English myrige, originally meant merely "pleasant, agreeable" rather than joyous or jolly

Hence “God rest ye Merry, gentlemen” (not “Merry gentlemen” )meaning “may god keep you agreeable”

I don’t usually have a problem in finding cards with an appropriate message. I send cards each year to Jewish friends and ex colleagues and find plenty with Seasons Greetings or something similar. Another option could be to find a plain card with maybe a snowy landscape and write your own message. What matters most is the fact that a card has been sent. I have always been glad to receive cards at a difficult time and didn’t pay much attention to the printed message.

It can be difficult to find the sort of cards EP mentions, especially if you want to buy them from a particular charity to support them and spread the word, as I like to do. I’ve had this problem when wanting to send a card to someone whose Christmas will not be merry, or who I know is of another faith, though for the latter ‘Season’s Greetings’ is ok. It’s also not so easy nowadays to find a proper ‘religious’ card - I have a relative who is a vicar and send him a card with appropriate wording, not just a religious picture. I have resorted to the demon Amazon I’m afraid for the odd card for someone who doesn’t fit the Merry Christmas robin mould. They sell and deliver everything but it does make a single card expensive, especially when postage costs are taken into account. I do however always try to remember to use ‘Amazon Smile’ which gives a minuscule donation to charity.

Quite a lot of cards now seem to say Seasons Greetings, which I prefer. It’s more appropriate to send to people who are not Christians and people of no faith.

I make my own cards and use 'Season's Greetings' for anyone not religious, or something more appropriate to the recipient if I know them well.
For bought cards I agree blanks are useful.

They don't really ALL have Merry Christmas on them. I have seen them with all kinds of text. You must have been unlucky in the ones you found.