In the past several months, I've been to a few celebrations - weddings. 21st birthdays, that sort of thing. They're not close friends, more the grown up children of work colleagues and the like, so I've given money for gifts rather than buy something they won't want. It's been between £30 and £50 each time and, maybe I'm old fashioned, but I would have thought that the least the recipients could have done, is to send a brief 'Thank You' card.
Am I being unreasonable to expect some sort of acknowlegement or is it the norm now that nobody says thank you?