I see a huge difference!!
I was baptized in September of 1993, when I was 13. I spent the next 5 years as a regular pioneer (1000 hrs/yr) and I could quote out-of-context scripture from memory at the door and work my way through the 1914 doctrine with one arm tied behind my back. So could the other 12-14 young pioneers in my age group. Of course, we were heavily trained by two older lifelong pioneers who would even bust down on the young men (haha) and just laugh at the elders when counselled to treat these young brothers with respect. I look back at my arrogance and just cringe.
Everyone in that group have left (faded, da'ed, df'ed) their respective congregations (5 in our city) with only a few that returned. According to my mom, we were the last "zealous" young pioneer group.
I am 33 now and when I look at the 25 and younger crowd in my folks' cong, I see a lot of "spiritual inactivity" and more focus on their families and social aspects. They all have small children and spend a lot of time outside of meetings, fs, etc. with each other camping, playing volleyball, skiing, etc. I saw a service group last Saturday with two vans full of 6 adults and a herd of children stop at the park in my neighborhood. Two of the men knocked on maybe 3 doors while the others set up a big blanket on the ground and pulled out a picnic. They were there from @9:30am until after I left my house at 12:30.
This would not have been possible 15-20 years ago...
I was happy to see kids playing and not being forced to sell the "truth" door to door. I hope that in time, this dangerous controlling group mellows out into a more mainstream religious group. It will take at least another 50 years, I think. But, at least in this congregation, it seems to be going that way.
This could be why the ever changing doctrines do not bother the JWs. They simply didn't know or care about the old ones to see that they are different now.