I live in Austria, and will get married here. The majority of the rest of my big family are in the UK, and a few scattered across Europe the only time either side get together is a wedding or funeral. In my culture normally out of respect you would visit your elders to give them their invites - I am the youngest of the family so this would have meant visiting everyone (about 35 households), however we were only in the UK for a long weekend, and the next time we return it would be only 3 months before my wedding. My cousin got married, and my intention was to give invites at the very end to the people living in the EU, and I would post the rest to the ones living in the UK.
About 40mins before the end of the wedding I approached one of my aunt's who doesn't live in the UK, knelt beside her and explained that I wanted to give her my wedding invite as I will not see her. She was next to my other Aunt who does live in the UK, and she asked for her invite too. I said I would post hers, and her children's invites too, but she said to save the postage and to give her a headstart on planning she would like hers now. So I give her hers and ones for her children too.
I gave my uncle one who also doesn't live in the UK one and sat down. When it was time to leave, I said goodbye to everyone individually as we were not going to see them for a while and my 2 other aunts and a few cousins also asked for their invites too rather than posting them. I gave it to them, and everyone from my mum's side had received their invites bar my cousin whose wedding it was and her parents. I would post these to them to avoid disturbing them.
However now the mother of the bride said I completely hijacked the evening, and it was really rude of me to do this. The wedding had been a whole day thing (11am til 11pm), and it was not my intention to attract any attention at all. For reference there were about 350 people at the wedding, and I only spoke to and gave 8 people invites (some of them multiple to give to their children) at the end of the wedding. If this was to happen at my own wedding I really don't think I would mind - it would be the next exciting thing to look forward to and when my family would get together. Was I unreasonable?