Will my 15-year-old son be allowed into the PC on his non-revenue BF international ticket? Is he allowed to bring guests?

If a lifetime PC member (my husband) reserves a conference room, does he need to be there? Must he have a boarding pass?

I am trying to get my son, four other members of the USA Climbing team, and two USA team coaches into the PC club prior to their flight to GVA on Wednesday evening.