Agreed with others it's just what you're used to. I was inverted-y for most of my gaming life because I started with flight sims where it was mandatory, reflecting the real life hardware. So I used the same in FPS games when they came around. Decades later I had kids and had to spend some time sharing a mouse with them, and didn't want to condemn them to a life of having to look for "inverted Y axis" in the settings of every game (+1 to the post above who requested an OS-level setting for this!), so I left it on the default in Minecraft and learned the other way. Now I'm actually bilingual and can swap from one to the other with about 2 minutes warm up time. This is the same as what happens with driving on the left/right side of the road if you spend a lot of time in different countries driving.

With my kids I drew the grumpy line at Minecraft's new Autojump setting tho ... They had to learn with that disabled.

You might enjoy reading the article.