From a recent Watchtower, July of this year, the following makes clear their position. Note that, apparently, members had been using the "necessary family business" excuse in order to associate with disfellowshipped family members who live outside the home. The photo (reduced in size for ease of bandwidth) accompanies the text of the article.

13 The parents are devastated! On
the subject of disfellowshipping,
they know, of course, that the Bible
says "to quit mixing in company with anyone
called a brother that is a fornicator or a
greedy person or an idolater or a reviler or a
drunkard or an extortioner, not even eating
with such a man." (1 Cor. 5:11,13) They also
realize that the word "anyone" in this verse
includes family members not living under
their roof. But they love their son so much!
Strong emotions might cause them to reason:
‘How can we help our boy return to Jehovah
if we severely limit our association
with him? Would we not accomplish more
by maintaining regular contact with him?’
14 Our hearts go out to those parents. After
all, their son had a choice, and he chose to
pursue his unchristian lifestyle rather than
to continue to enjoy close association with
his parents and other fellow believers. The
parents, on the other hand, had no say in
the matter. No wonder they feel helpless!
15 But what will those dear parents do?
Will they obey Jehovah’s clear direction? Or
will they rationalize that they can have regular
association with their disfellowshipped
son and call it "necessary family business"?
In making their decision, they must not fail
to consider how Jehovah feels about what
they are doing. His purpose is to keep the or-
ganization clean and, if possible, to incite
wrongdoers to come to their senses. ...
The Watchtower, July 15, 2011
Hi Zengalileo,
Thanks for that remarkable experience you heard and I believe you. For the sake of my illustration, however, I will stick with one that readers can look up on their WT Libray CD where this is but one of two six year olds that were baptized at such an early age. It's interesting that these instances were related in yearbooks of the 90's but actually recalled from decades earlier. An obvious Watchtower attempt to encourage early baptism.
Len