You’re probably right, Doodledog, the only way to truly know what’s happened is to ask the recipient! Otherwise it is conjecture.
On taking things for granted, I think because we’ve lived abroad in developing countries, personally we are grateful for everyday things. My dd2 is very much a ‘Third Culture Kid’, her experiences have really informed her life and set her apart from others, in a good way.
Your take on gratitude is also interesting! I looked up the meaning as I don’t see the same things as you. I think perhaps you view gratitude as also being indebted or beholden to the giver, whereas I take it at face value. They did a nice thing and I thank them for it and that’s the ‘transaction’ completed, if you like. I certainly would not want anyone to feel beholden to me for anything!