I get this. Demolishing everything makes the lowbie feel useless and they don't learn anything, and the old "out of party" trick doesn't help that. There is a whole social aspect that the devs don't seem to get. I tried grouping with someone a few times, but as soon as someone has a solo duty you gotta break up the party. RIFT has what they call mentoring and sidekicking. You could manually lower your level at almost any time in the world, and lowbies could match higher level players in their party. SWTOR allowed you to share almost any quest instance, including most class phases.