>>49240226For me I'd have it so that they begin to take pity on you after so many repeated failures that they give you a badge out of pity just so you can move on.
Gym Leaders:
1. Cynthia (Almost certain first loss out the gate to put you at an immediate disadvantage versus everyone else)
2. Roxanne (A no nonsense teacher in which you'd be 3 feet tall, about the size if not smaller than one of her students)
3. Iris (Kid sized to a kid)
4. Valerie (Dollhouse inception. At 9 inches tall, you'd be about as big as a barbie doll by this point)
5. Bea (Bea puts you into a training regimen to make you stronger by making you wrestle her hands which are a bit bigger than you)
6. Erika or Caitlin (Trying to wake her up and get her to notice you at a height of 2 inches tall)
7. Misty (Makes you train in her sink which might as well be an Olympic sized swimming pool)
8. Viola (Treats you like a bug and takes humiliating pictures of you)
Elite 4:
1. Acerola (One of the smallest eligible pokegirls, makes you feel small by being so tiny compared to a "little" girl as she doesn't take you seriously, toying with you instead)
2. Kalil (Almost polar opposite of Acerola, makes you feel small through her dominating, powerful presence, reminds you that the Elite 4 is no joke)
3. Clair (Most vitriolic pokegirl, makes you feel small through verbal belittlement and insults as she haughtily talks down to you about how much better she is at everything)
4. Elesa (Tallest pokegirl, makes you feel small through sheer height difference and the disdainful look she gives as she looks down at your less than millimeter tall body)
Champ:
Sabrina (One of the few pokegirls who'd be able to know where you are at all times at your current height due to her psychic powers)
I had some slightly more in depth reasons for all of them that was mostly related to what your current size would be at the time but removed them and paraphrased the main idea behind the reasons cause the post got too long