So we are getting ready to send out our save the dates. I am probably thinking too much into this but I want to make sure I address them properly.
1. I have a 4 younger cousins that I know are currently each dating someone. I'm wondering if I should write the name of each of their significant others or write "and guest." The reason I'm up in the air about this is because I'm not sure that these couples will be together come wedding time (they are all aged 18-21, and while I know sometimes a relationship at that age can last, sometimes it doesn't, and knowing one of these girls, they never last long). Anyway, I already budgeted to have them each come with their SO and I'm more than willing to let them bring whoever they happen to be dating at the time. But if I write someone specific on the save the date (and the invite when the time comes) does that mean that that specific person is invited?
2. We have some friends and family on our list that go by shortened versions of their name. I have literally never heard these people so by anything other than their nickname. Is it absolutely necessary to write their full name on the envelope? From what I've seen after googling it, some websites say if it isn't a black tie or super formal event, then the nickname would be fine, just know your guest and what they would prefer. Other sites say that under no circumstances should you use a nickname.
Basically I just want to know what you all have done/plan on doing. Like I said, I'm probably overthinking this and my energy could be better spent on something else, but overthinking is what I do.
Thanks in advance!