It is the very definition of being cis to not understand wanting to be a different gender than the one being assigned at birth. People who are uncomfortable with their assigned gender are not cis.
But many need a while to realize that other people do not feel the way they do.
![egg_irl [Transfem meme]](https://files.botsin.space/media_attachments/files/112/559/575/432/621/092/original/38f97b473b27de89.jpg){kind=link}
On a surface level, sure, but most cis people never really have to grapple much with their gender identity.
So much this.
It is the very definition of being cis to not understand wanting to be a different gender than the one being assigned at birth. People who are uncomfortable with their assigned gender are not cis.
But many need a while to realize that other people do not feel the way they do.