It's been established that there is no reason for the limited numbers.
But there is a reason. It’s not a financial reason, or a venue capacity reason, but there is one - and that’s that they want a small wedding. Why is “want” a dirty word when it comes to your own bloody wedding? As you say yourself, it’s supposed to be a once in a lifetime thing.
Do you really think inviting partners would mean just adding a few extra people? Think again. Once you expand from 40 to 50 or 60, the small wedding you wanted gets bigger - and people who understood that they weren’t invited when it was small become less understanding. One of the groom’s mothers starts saying, “Well if you can invite all your friends’ partners, surely you can find room for Uncle Tony and Auntie Pat?” The other side then want to know why aunts and uncles are invited on that side and not theirs. Then the wedding that was only going to have 40 guests ends up with 80 or 90, in a venue neither groom wanted in the first place - and the bigger it gets, the more people get offended they didn’t make the cut.
We are not talking about dinner parties. We are talking about weddings
Thanks for clarifying. I had actually caught on through the subtle hints of the subject line including “wedding”, the OP being all about a wedding, and every subsequent post being about a wedding, that we were talking about weddings, but it’s always as well to check.
My point was that you suggested that, by my logic, no one would ever invite anyone to anything. I gave a clear example of why that isn’t true.