I think everyone is side tracking here just a little bit
The point is, a player should not be allowed to be group summoned to a zone that requires min level x while the player is only level y. Its just flawed that while a player cant get their own, that if they group with someone who is high enough level they can.
Another solution would be to remove the level restriction altogether so that players can go to any realm they want on their own. Then introduce the "you are entering an area with level x mobs" warning as was suggested.
I do not want to restrict players aspect to any feature of game, gatherers should not be penalised for being low leveled, but if a zone has min requriements it should be strict... or else not there