To be honest, I don't mind not being able to leave the Playground.
Since Ruti came, I am no longer bored, and if I ever want to know something about the world; all I have to do is ask. There's no need for me to travel or anything, and it's not like there is anything in particular that I would want to do if I got out.
Besides, the Professors provide everything the kids who live in the Playground want, within reason, so it's also not like there's a lack of things to do if I so desire.
When it comes to my requests, they tend to be a lot stricter, though.
They always triple-check even the simplest ingredients or parts in whatever I ask for, just to make sure there's nothing in there that I could use to make a dangerous tool or weapon.
I get why they do it, but it can get a little ridiculous at times.
That's also why I was confused when Ruti first arrived here, and even more so why they kept her here after a few incidents were caused.