How do newer players build their skills if any content before hw is considered Old

[HPDelron]

The current tiers of content:

Alexander (The Creator) normal is more than enough to cut your teeth on and learn the bare basics of your class and how the skills work. Even if you're totally lost the content isn't hard enough the group will fail if you're fumbling around and getting your bearings.

From there you can step up to Sophia (Extreme) which is a relatively forgiving fight, which will get you past the basics on movement, reading boss tells, and coordinating with other players.

From the first parts of Alexander(The Creator) savage pick up about where Sophia leaves off.

Honestly the current crop of content has a very good learning curve for a freshly-60 player.

If anything the older 50 content isn't going to be great for learning basically it'll be either sync'd and locking you into a pared-down move set that isn't super relevant anymore or it'll be sync'd and be so easy that the mechanics aren't particularly meaningful. This is already true of fights like Ravana Extreme even at 60, damage is so high he just dies before he does any of his interesting mechanics.