No problem mate. I've got the whole day to spare.

So you're agreeing that it's an irresponsible thing to do?

Let's just assume that it's a very well trained dog and a very untrained kid for the sake of argument. Why might not be the case.
1. Why are you training the dog better than you train your own kid?
2. Even well trained dogs act unexpectedly sometimes e.g. chasing an animal or a being aggressive to threats.
3. There are other methods to prevent your kids from stealthily vanishing in a second e.g. holding their hands, keeping you eyes on them, tying a balloon to their hand, making them wear squeaky shoes etc.
4. You don't put a leash on a puppy or kitten, right? Then why are you putting it on a toddler?
5. Who treats their pet better than their own kid? I'm not saying humans are better than animals, but it's bizarre how welcoming it is to treat a kid in a way we dislike treating an animal. We feel sorry for putting an animal on a leash but it's awesome if we put it on a toddler??
I don't know man, maybe I'm weird, but this is just messed up.

So I guess OP is still correct

What game is it? Looks fun.

Tron is blue. But yeah, like Tron.

Well someone's on their period.

It's from a song. Oh hot damn, this is my, jam – In the Ayer by Flo Rida.