I know Acadia’s already established that Batman has a lot of awesome stuff, but go look at this extremely cool (and possibly terrifying/slightly awkward) Batman carseat with wrap-around cape. I won’t go so far as to say it made me want kids so I could justify buying it, but it did make me seriously consider stealing one of yours.
I Think I Just Shot an Egg: Batman Carseat

It should come in desk chair for full sized people.
Also in a mobile scooter version for more than full sized people.
*is a genius*
It reminds me of something Freud once said: “Jung, do you think I look stupid in this hat?” (I know the link is somewhat tenuous, but that is the nature of the unconscious part of the psyche)
Lucky no one asked if it matched his slip or we’d all waste a few hours trying to remember how to spell parapraxis.
Might I suggest getting the car seat, then, get a midget. Sorry, little person. Then you don’t have to worry about that whole pesky “kid” thing.