Hi
I was born in to the Church and was baptized when I was 8 and most of my family is LDS. Consequently I may not understand most of the stresses that come along with having friends or family in attendance, when they may not have the same believes. However I have served a mission and from my experience I feel that having anyone (who is not hostel) in attendance is great. It is a wonderful opportunity for them to feel a very special spirit, and often with that experience come questions. This leads to a great opportunity to teach.
So in answer to your question, anyone is invited, anyone you want to come.
