I carried my brother through his 20s because he's a full-time student and is triple boxing Runescape along with XIV. We have all the time to learn the mechanics of party combat before we get to the endgame content, so I figured I may as well help him since that way I'll have a guaranteed party member when I need them. I'm planning on doing the same thing when my friends join XIV. Of course, if someone's just deliberately taking advantage of a PL without repaying them in some way: That's when I have a problem with it.