Most cis people do understand their gender identity, I think.

The "they feel they were born in the right body" part is waaaay off, though. I was born in the cheapest body they could find in the back that would still run for a few decades. It wasn't "right" as much as briefly available and technically alive enough for the doctors to let my parents take it home with them. There are entire pieces that don't run at all, others are way out of spec, none of them look good. It's a mess in here.