I'm not saying this to be mean and I don't know how else to word it, but I feel like some comments are taking what she said too personally?
Like, I don't know if it's the case for every disabled person especially with how disabilities and people with them are portrayed in media and I don't know if it the case here, but when you're still young you tend to have a misunderstood idea about disabled and able-bodied people as being disabled people and "normal people". You can sometimes get stuck thinking about the things you can't do because of your disability, and when you see or know of people who are considered the "standard" being able to easily do these things, you just see it as "if I was normal I would be able to do that". It takes some time and life lessens to realize that the people you see as "normal" might have a hard time with those things too, that just because the look "normal", it doesn't mean they're not having their own issues. It's something that everyone has to learn, disability or not. Again, don't know if it's the same for other disabled people and it's most likely not the case here, but it could also be a type of coping mechanism. You end up idealizing able-bodied people as being able to do so much because you want to believe that if you were never disabled that you'd also be able to do all these things, like it's shown multiple times in this series. Also, her thinking that way might even end up being something she learns to think about later in the series, just gotta wait and see.
(I know I'm pretty much reiterating a lot of things already touched upon in this series, probably in a confusing way too, but I needed it for want I was trying to say. Again, no malice intended, sorry for any confusion, and this was written with mostly with physical disabilities in mind)