Who are you trying to prevent from taking the handle? Seems like it's either a) adults - that have a legit use for it now, b) soon to be adults that will have a legit use for it sooner than your kid does.
It's a very unique name combination, no one else on earth would have a legitimate use for it. It's more a matter of just making sure I own and control it so I can give it to them later. I'm thinking more of a situation with spammers/scammers registering the address or something.