I guess the point is that you could shapeshift into the body you always thought you’d grow into when you were a kid

taller, shorter, slimmer, more muscular, purple hair, tattoos everywhere, tattoos nowhere,

every single shoe would fit you every single time you tried it on, every single article of clothing would fit your perfectly, all you have to do is transform slightly, you’d never run out of ‘your size’ again

and you wouldn’t have to work for it at all, and you’d never be limitted by your bone structure or something. You could just transform at will.