We didn't do save the dates, but we contacted a few people who live abroad to let them know, and a couple of them won't be able to make it, and another couple who live here told us they are going to be away at a family wedding.
Should we still send them an invitation? I don't want them to feel they have to tell us again that they can't go, or worse still feel obliged to send a present.
We have two couples who we know can't come, we still sent them an invite as we thought they'd appreciate it and enjoy having it as a memento. We were sent an invite to a wedding, even though the couple know we'll be on honeymoon, we simply just rsvp'd no again.
I invited my friend abroad even though I knew she couldn't come. I couldn't not invite her to my wedding.
I also invited my grandmother and some others who we know won't be able to travel. We thought they'd still like officially having been invited and my grandmother may like having the actual invitation to look at and show people.
Also nice to send one in case their schedule does change and they decide to come after all.
It would be my opinion to still invite them, might save hassle down the line especially if its relations, it's nice to receive the official invite.