Sorry I am stuck on the serving part! What like going door to door is serving!
No reason and it was mandatory and forced. I never thought ever anything the JWs did was serving God but socializing.
I doubt any JW kid or young adult actually thinks about armeggedon or everlasting life. It is all bull. Paradise earth is just part of a doctrine.
What you call serving is a verbal contract with the JWs.
Serving that is a good one! joke. I doubt God would ever think of anything a JW does is serving him! or any church.
One must be really delusional if they think sitting in any church is part of serving God.