Would want a perfectly normal healthy actual child's body, voice, etc. And lacking in cholesterol, hormones, sweat glands, etc. Not a genetically defective failing broken adult body.
I want to look in the mirror, needing a step stool to do it, and look how I feel.
Would have to be uniquely mine. Couldn't trade with a child who wants to be grown up cause it would be robbery.
Ideally I'd wish for a superpower to change my age and appearance at will. And then my 6 yr old form would be my preferred default.
Keep my job but live my life as a child with infinite resources. The dream life of actual child me. Think Disney movie Blank Check. Which is pretty much what I've been doing anyway and why I'm a little. My living room for example looks like one of those old magazine sweepstakes with the crossword puzzle I always fantasized about as a child. Remember those with the big TV and sound system and every game console and accessory? It's not a nursery because Im not a infant but it's effectively my little age appropriate play room with the bonus of not having to be secret and ABDL related.
But I could do without the large hairy greasy smelly creaky adult chassis.
It would be nice to climb up a step stool and see blushy chub cheeks, 1/4 moon eyes, baby tooth grin, and fluffy perfect hair in my eyes. I pretty much already time jumped into my adult body, losing track of aging and time passing as I strived to get ahead in the adult run world and right everything I hated as a child. Now that it's done I want my child body back to resume where I left off so many years ago.
Speaking of hair ever notice how a kid's natural untouched hair is so perfect the specular highlight forms a halo?