When I was younger if anyone gave me a present I was always told to say thank you or write a thank you card, especially if it was someone who I had been unable to thank in person. I have stuck to this as I have gotten older. While I know sending cards is probably now seen as old fashioned, I can feel quite hurt when I don't receive any type of acknowledgment when I have given/or sent a gift in the post.
I hand make a lot of things for friends children, so a lot of time goes into this, (when I could easily just spend 5 minutes in a shop choosing something as an alternative). I don't expect a card, a big fanfare, or a fuss, but just a text or quick email to say, 'thanks' I think is just being polite. I do love making things and sending presents, it makes me feel really good to be able to do this for other people and their children, but in the past 12 months I have noticed I have had to ask people if they received something in the post just to check they did get it as it appears to be the norm now to hear nothing back.
I know you shouldn't give only to expect something back, but is it good manners to not acknowledge anything at all? is this just the way society is now?