My wife's Nephew Bob who has been DF for 25 years and asked to leave his home at age 18 received an invitation to his son' wedding. His son became a JW after living as a young adult with his grandparents and then getting engaged to a JW.
They held the wedding outdoors in a park (this was last spring) then went someplace for a banquet. After the father set at a table with other non witness family members his son was told by an Elder that he'd have to ask his father to leave...his son refused so the Elder told his Dad he could not eat with them.
Bob decided not to go ape shit over the disrespect and spoil his son's occasion so he left along with a few of the other non witnesses.