I think the mothers in the past for whom Mothering Sunday was 'invented' were probably just glad to see their kids after weeks and weeks (possibly months) of not seeing them. I expect the kids were glad to see their mums too, and picking a few wild spring flowers on the way home was a nice gesture.
Nowadays we have many many more ways of keeping touch with each other and of visiting. Our lives are not so constricted as the lives of those servant girls and their mothers. We can exchange tokens of affection and respect 365 days of the year in lots of different ways. Picking one day out of all of those as somehow more significant than all the others is, as the OP suggested, asking for trouble—not for everyone, obviously, but for some, as various stories on gransnet yesterday have shown.
Blusters in corner if my mouth
It's the tradition of it really.
