Maxperson
Morkus from Orkus
Hot take. The players DO care. They just don't know that they care.Diversity is great!
But I'd also point out ... that most players don't care. The players that care usually become DMs to do the world-building, and then those DMs become really disappointed when they make all this detailed world-building, and then realize that .... guess what, the players don't care.
And the fact that so many people today now look back at B/X (Moldvay/Cook) specifically as an example of how rules were done correctly back then probably speaks to something.
Personally, I remember that at the time, I thought "Race as class? That's for babies!" Now I think ... "Eh, I can appreciate that."
In my experience those extra details from world-building make the game much more enjoyable for the players, even if the players aren't overtly marveling at all the world-building that I did(in the distant past when I had time) or the purchased setting has. That depth adds to the game.
I've run games with and without the extra world building and the players have fun with both, but more fun with the depth of world-building present.