I apologize if this question has been asked before, but I am really not sure what to do. We are having our preacher from our church officiate our wedding (out-of-town destination wedding). He has a wife and two children - one of which is over 18 and in college and the other is 15 and in high school. From lurking, I know that the 19yo will have her own invitation with a plus one. Our preacher has mentioned his son (15) will probably still be in school at the time of our wedding so he most likely won't be coming ( he will still be on the invitation though).
My question is-for the rehearsal dinner our preacher and his wife will obviously be invited, but are we obligated to invite the 19yo and her +1? They will all be staying together so I feel like it may be weird, but then I think that a 19yo could entertain themselves for one evening (especially with a +1)?
If the 15yo does not come, should I only invite the parents? If he does end up coming should I invite the whole family?
What is the proper etiquette? Thanks!!!