Alternatively, by doing what you suggest you embed stereotypes into the person which may then need to be undone, which is harder then starting from a blank slate.

This is how we get to harmful (even if well intentioned) ideas like “Asians are good at math”.

https://ideas.ted.com/why-saying-asians-are-good-at-myth-isn...

https://phys.org/news/2020-07-racist-stereotyping-asians-goo...