We're taking our 4 1/2 yo in a couple months. Right now (with shoes) he's about an inch shy of being able to ride Space Mtn. This kid lives for roller coasters and there are plenty for him to choose from this time around. Should we even try to get on Space mtn? Its not a big deal if he can't and we've already explained to him that he isn't tall enough. But i am wondering how strict the height guidelines are enforced? I know its a safety thing and we would never try to force the issue. I'm just curious.