I did it because I can...

I have a question...maybe I have overlooked something obvious, but I need to ask it anyways even though I doubt I will ever get an answer that will help as such.

Why do people assume if you give them a gift or you do something for them that something is wanted in return? I really hate that. I like getting things for my friends and family, or sorting things out for them if I can and I'm always asked "so what do you want?" or "how much do I owe you?"
I do things for people because I can and because it helps or is a pleasant surprise, it's that simple. I do not expect anything...well maybe a thankyou, but that's enough for me....I'm not one of those people who does something for people so I get something in return (although it is sweet when they do, but I do not expect it).

Ah well, maybe it is just the way of the World these days...