Guitarists should use a lack of luthier access to learn how to do at least three things:
1) Set a truss rod.
2) Set the action.
3) Intonate the guitar.
Another desirable is enough soldering knowledge to make sure a 2 humbucker, 3 way toggle, master volume only guitar at least will work come show time.
This is another reason why, for metal guys like me, I recommend active pickups with a master volume only as a #1 live guitar. Easier to install with fewer steps than passives, IMO, and they tend to be plug and play. Most metal guys are going to be at 100% volume on bridge pickup 95% of the time anyway. Passive guitars with complex wiring options are more flexible and difficult to install so I save them for studio use.
For Floyded players, they need to know the crucial step of leveling the bridge and setting the spring claw, something that seems glossed over and leads to way more frustration than is justified. If they understood this step I think non-Floyded players who want to try them would more readily embrace Floyds instead of treating them like 9th graders treat first year algebra.
Considering I like a lot of different tunings/pickup combinations on Floyded guitars, I spend more time setting up than actually playing.
But yeah, doing your own setup is like changing your own car's oil. That said, I don't even change my own oil. I don't trust jack stands. Or GC techs.