FIL is in a home and is sadly now unable to recognise any of us, doesn't speak, is unable to feed himself. Sleeps most of the time. We saw him recently but won't be there on the day. They are likely to have a little celebration but I doubt very much he'll know what's going on. DH doesn't think it's worth sending a card, but WWYD?
YABU - just send one, to show you care
YANBU - don't bother
Thanks