Before I get into this, nice website and I'm enjoying the format of it all. Well here goes!:
1. Would I think childhood is Utopian? Well yes and no. Depends on your environment and how you hung around with. I lived in Oakland California, which at the time was a high-crime city. My dad was an alcoholic and my mom turned to computers for comfort, for the most part I was sort of neglected and got into a lot of trouble. When my mom got divorced and we moved in with my grandparents things turned for the best. But would I say I look at my childhood as fond Utopian like memories? Probably not, maybe a few times I got into some fun trouble with friends but that again was a result of neglect and I wasn't totally unaware of it at the time.
2. For Utopian places, I'd like to think that being with a loved one could be considered Utopian, in which everything seems perfect even with imperfections present. But let's say I'm on my own and would like to pick a personal favorite place, it'd have to be my room. I do like being alone sometimes, enjoying me time, and the best place to do that is my room.
3. Ender's Game definitely had a Utopian thing going for it. With advanced machinery and technology that makes you more advanced than your average humans. Reminded me of the qubes from Robinson's 2312, there's this thing they put on your back as a child to be smart if you were chosen. While it wasn't a Utopia quite yet that was what the end goal of it was. It was a Distopia of sorts, children getting chosen to be put through training to fight a simulation of a war to destroy an entire alien civilization. The protagonist at the very end brings them back from extinction and brings out peace.