How about just not making any assumptions at all and ask and support people, be it white, black, male, female, trans, etc?
No, it's my experience showing. I grew up being basically ostracized (and also bullied) for being a geek. Little did I know it would turn out to be an extremely lucrative career. Simply, while other boys were out playing sports, or indoors playing computer games, I was programming. Because I was interested.
Having said that, I think it's also the case that some people are discouraged from doing what they want, because parents/society. I don't think I'm doing that though. If anything, I'd be more curious about someone doing something unusual (not even in an anti-stereotypical way, but like, generally - such as archery, or spear fishing, or (until recently) bread-making).
> How about just not making any assumptions at all and ask and support people
I definitely support people doing pretty much whatever. But experience shows that it's often better to e.g. lead conversations into interesting topics, rather than play a questions & answers game to find a common interest. The more you're able to do that, based on quick inferences, the better conversationalist you are (on average).