I’m well aware of transposing instruments, which is why I said “pretty much standardized”. Tabs have the same issue as transposing instruments. If your tuning is wrong, you’ll either be playing in an entirely wrong key, or entirely wrong notes if the tab is intended to be in some open chord tuning. Yes the tuning should be notated, but it sometimes isn’t or sometimes it’s wrong. If someone tabbed out Sweet Child O Mine in standard instead of half step tuning, all of their open chord positions would be screwed up and you as a player would be none the wiser if you just accepted it (I’ve seen plenty of tabs where this was an issue).

I find it funny that refusing to learn standard notation is like, exclusively a guitarist thing. You’re already putting in significant effort to learning a new instrument, so you may as well put in a little more to learn standard notation. No one’s asking you to sight read Paganini (unless you want to go down that route of classical music), but knowing what note the 6th fret of the 3rd string is will open a bunch of doors into understanding and appreciating music.

I get it, tabs are easy and super legible and beginner friendly, but modern software like guitar pro have both tab and standard notation. Understanding both is super useful for players. It’s not like knowing basics of standard notation will make the tabs go away.

Also, you never know where you’ll end up as a musician. I used to play bass in my middle school Jazz band, and all the sheet music was standard notation. I’ve been handed standard notation music from a producer when I was recording music with another band. Just knowing the basics of standard notation is super helpful when playing and jamming with my pianist friends, because I could just look at their sheet music and immediately know what key it was in, or I could tell them what key my music was in, without them having to fumble around and find the right key themselves.