Do you give friends/family a disclaimer about using your work?

First of all, I am not a professional. I have done one paid shoot, one free shoot (both graduation, free one was my sibling). That’s it. But all of my friends know that this is my main hobby. Recently, I got a save-the-date for a friend’s wedding and I flip the card to see a photo of the couple that I took. Never got any notice and they definitely didn’t ask. No credit either, which would be normal, if they had done a paid shoot with someone.

On top of that, I took the photo on an instant camera and whenever I take those, I scan them and send the scan to the people in it. Since I’m just doing it for fun, I send them on iMessage so there’s compression. The quality of the image isn’t great on the card.

Am I wrong to feel a little weird about this? I will not ask them for payment or credit now, but do any of you have like, IDK verbal agreements with friends about this kind of stuff? To be fair, even if they had asked, I would not have said no. But I definitely would have ensured they at least used a file that would show the workmanship correctly. I would even have rescanned it and did some more editing.