My mom taught me to read when I was young (pre kindergarten), but as far as I know she wasn't specifically trying to teach me to read. She just read to me a lot, where I could see the page she was reading from. Mostly she read me comic books. I loved the DC characters back then - Batman, Superman, Wonder Woman, Flash, Aquaman, Green Lantern, etc. and so she read me that stuff many many times. I mean, yeah, I had some of those "Little Golden Books" and stuff around as well, although I don't pointedly remember reading those the way I do the comic books. Anyway, she did all that and when I started kindergarten at 4 (due to being a summer baby) I was already reading. And then stayed well above my grade level on the reading tests all through school.
So I dunno. Maybe it was dumb luck that things worked out that way for me. Maybe there is a genetic element. Or maybe more than anything what mom conveyed to me was a passion for reading (she was a very avid reader herself). Maybe part of it was just that there were always plenty of books around the house and so reading felt like a very natural thing to do. Or maybe it was that whole Pizza Hut BOOK IT thing they had back in the day. Who knows?
In either case, I feel very fortunate in this regard, as reading has remained a big part of my life ever since, and still is to this day.