I'm a LP, DS is 7, been just us since he was 13 months. Historically since we returned to the UK my Mum takes him out for get me a gift at B'day, Xmas and MD.
So she called today to say she needs to take him out. I say it's fine as I gave him £4 at his school fayre and they have a 'smellies' store with 'gift packs' for £1 for MD and he decided to buy me something. (was very cute as he did it all secretly 
).
So mum said what about a card? I said he hadn't mentioned one, that he may have made one at school but I wanted him to be in charge of the idea not be forced into thinking the money value etc counted - for a 7yo spending £1 of his money means far more (when there were cakes/chocs and toys to buy!)
So she said she'd buy one anyway for him to write when we go round there.
AIBU to think this card means nothing as DS didn't initiate the idea or chose it and it's the initiative he took in my present that counts and show he may actually care!
BTW I am grateful for my mum doing it before I get accused otherwise 