@macys
I've had elders say to me "you don't need to preach about the governing body or holidays or dates. All you need to do is talk about paradise, Jehovah, very simple things. All the other stuff will sort itself out in due time."
He was the only elder (not even from my congregation) who stopped to talk to me when word got around that I was out. He agreed he didn't buy the dates, the teachings on the generation and a wide variety of subjects..
HOWEVER. As some have already replied here, people are 2nd, 3rd, 4th generation witnesses with no family or friends that are not Jehovah's Witnesses. They have to choose between rebuilding their lives from the ground up, including jobs in many cases, going through custody battles for their kids, being shunned..and living a lie half-heartedly.
I was lucky enough to cut my losses at some friends and a few family members after being a witness for only 10 years, along with not having to worry about a messy divorce or kids. I have friends still in that I speak to regularly who want to leave, are on the verge at times of just walking away, but they cave under all of that pressure. I don't fault them for it. When they are ready they are ready. I can't imagine being in their shoes.
It took me a while to understand what that was like, and I still don't think I fully can grasp it.