I don't really expect my DC to "do" Mothers Day for me, I'm totally fine with it, but I personally enjoy doing things for my DM and what I can for DMIL who lives 300 miles away, be it a special card for them or meal or whatever (DMIL is actually visiting weekend after MD).
My DH is crap with anything like this so it always falls to me with arranging cards, flowers etc, I do it for both mums and often by the time we've sorted that out I kind of get left behind, but that's totally fine.
I really love it when my DM loves what DC have made or that she's enjoyed a treat or meal or whatever (she has very little so I try really hard to make her feel special however I can), that for me makes Mothers Day.
Same for MIL. We call or FaceTime an she's chuffed to bits with what DC has sent (usually a pasta pic or painting that makes no sense - you know, the usual toddler art projects), or what "DH" has had delivered and proudly puts it all on display.
Last year I got a mug and a card, which I loved. That was it though. No breakfast in bed, no special tea, nothing. And that's fine. Because I planned to make others feel special, which in turn made me feel good, and it was a fab day all round.
And this year I'm doing a fundraiser which involves staying out overnight so on Mothers Day, me, DH and DD ;15) will wake up cold, tired and hungry but I'm happy with that too! Raising money for a fab cause, then off for a fry up and then a relaxing day on the sofa :)
It's what you make it OP. That's all.