Are LEGO conventions moving from a gathering of like-minded adults into a place for families and children to connect over a shared love of plastic bricks? That was the big (unanswered question) of BrickWorld this past weekend in Wheeling, IL.

What seemed like an adult convention with a few precocious teenagers in 2008 has morphed into a family friendly universe that is pulling in fans of all ages. The youngest of BrickWorld's 800+ attendees was five years old -- the oldest was 74 years old.

Whi...