I wonder how many were there because their parents "encouraged" them to attend?
Male bethelites can have their pick of the hot witness chicks.
There you go. High School seniors and recent grads are told to go to the meeting. Some other young ones go because they had no help from JW mom and dad to go to college and they are expected to pioneer and work at the shoe store, so they would rather go to Bethel. Perhaps, to see the world and perhaps, to get away from mom and dad.
And the number one reason: They aren't having any Watchtower approved sex and they don't see too many financial boosts in their near future, and they really want to have sex. They might as well become Bethel boys and get the hot girls whose parents will even approve of them. Heck, they may be total losers in their congregation with no hope of ever making MS, but then they can become like rock stars.