I remember when I was 10 years old (that was 15 years ago), some JW brother in our congregation talked to me and he said he can't wait for us to be perfect in the paradise. I asked him how can we become perfect all of a sudden since sin is "stained" into us. He said that's because Satan and demons won't be around anymore. It makes you feel much more different and it will reduce your temptation. I asked him if we will always be happy all the time without being angry, jealous, and stuff. He was like "definitely!" Next, I asked him what if we fall off the cliff, trip over a rock, or get hit by something in the paradise. We would still be making mistakes therefore we can't be really 100% perfect. He said Jehovah and his angels will help protect him. I told him if we are really perfect then we wouldn't need Jehovah and his angel to help protect us. We all will still make mistakes if we go to paradise. I asked him to use his Bible to show me if Jehovah will do all of those things. He was like "excuse me, I got to go to the bathroom" lol.
It would really suck being happy all the time like they show in their pictures of the paradise. Happiness, sadness, sorrow, anger, jealousy, anxiety is part of life. That's what makes our life exciting. I love the era we are living in right now because of advanced technology and better understanding of life. I don't see any advanced technology in the pictures of paradise provided by the WTBS. It would be like us suffering a big setback.