Let's not forget too that understanding and enforcement of these rules is not consistent throughout the organization, either by the elders or R&F members. One man's "association" is another's "family business" provided that they aren't discussing religious matters, which is what is meant by "spiritual" or "biblical" (as Reniaa puts it) matters. Most if not all elders would agree though that if these elderly parents needed to be taken to the hospital or if estate issues arose those would qualify as "family business".
Because Watchtower says so many conflicting things and the Governing Body has so many tricked into thinking that they are "God's Channel" people want to "be safe" and sometimes go beyond even the Watchtower's rules. Watchtower's Governing Body has truly confused and done much harm to so many families, creating unnatural situations in which communication is sporadic, leading to sometimes catastrophic and always sad consequences.
Isaac Carmignani