Yes it's true!!!
it's also very similar to Tangled, where Rapunzel finally leaves her tower and simultaneously is FREAKED OUT that she's being bad and completely delighted about the feel of grass under her toes and the joy of freedom. Seriously even if I was a witness (and I was when I saw it, and wanted out but wasn't there yet) but even if I was like really a witness, I would have gotten that message. Yep Disney sometimes really seems to get it. Check out also the lyrics to Frozen's 'Let it Go.'