It should be socially acceptable to change/choose your name regardless of whether your trans or not
It’s genuinely heartbreaking to hear somebody say how much they hate their name, cis or not, for any reason but don’t know/feel like they have the option to decide that’s not their name anymore
It’s YOUR name, you don’t deserve to have to live your own damn ass life with a name that you hate or even just dislike. That’s reason enough to feel justified in choosing one that you do want.