not how old (though if you can put an age on it, please do! i'd say i'm probably an inner child of 8 years old). rather, how often do you let your inner child out, or how often does it want to come out?! this was sparked by a post on reddit i just read that really hit home with a childhood dream of mine. there are photos of his in-home slides, and a video! they even have a slide that goes from their home to their pool outdoors. the comments are hilarious too, some of the things he's being asked. of course, this is superfluous, and a silly (albeit fun) way to spend money, but if they have it, more power to them. what are your inner child's wants?