My brother-in-law is a true believer JW. He recently got married and they want to go to the WT couples school together and serve the borg as fully as possible. They don't want kids so he had a vasectomy. He did this because we are so deep into the last days and kids would get in the way of their spiritual goals. Besides, Jehober can restore his reproductive powers in the new system anyway, right?
The guy is in his 20s and he likes kids. I'm sure this decision will not come back to haunt him down the road.
As an interesting side note, my driver's license says I'm an organ donor. This guy's sister gave me a hard time about it because she thought that was against WT policy. But looking at this thread it's no wonder most dubs don't know what the current WT stance on any subject is. Depends on the day obviously.